A pipe for the passage of air; esp. a ventilating pipe. [ 1913 Webster ]

n. A musical wind instrument, now used chiefly in the Highlands of Scotland. [ 1913 Webster ]

☞ It consists of a leather bag, which receives the air by a tube that is stopped by a valve; and three sounding pipes, into which the air is pressed by the performer. Two of these pipes produce fixed tones, namely, the bass, or key tone, and its fifth, and form together what is called the drone; the third, or chanter, gives the melody. [ 1913 Webster ]

v. t. To make to look like a bagpipe. [ 1913 Webster ]

To bagpipe the mizzen (Naut.), to lay it aback by bringing the sheet to the mizzen rigging. Totten. [ 1913 Webster ]

n. One who plays on a bagpipe; a piper. Shak. [ 1913 Webster ]

The exhaust pipe of a steam engine, or any pipe delivering steam or air, when so constructed as to cause a blast. [ 1913 Webster ]

n. 1. A tube for directing a jet of air into a fire or into the flame of a lamp or candle, so as to concentrate the heat on some object. [ 1913 Webster ]

☞ It is called a mouth blowpipe when used with the mouth; but for both chemical and industrial purposes, it is often worked by a bellows or other contrivance. The common mouth blowpipe is a tapering tube with a very small orifice at the end to be inserted in the flame. The oxyhydrogen blowpipe, invented by Dr. Hare in 1801, is an instrument in which oxygen and hydrogen, taken from separate reservoirs, in the proportions of two volumes of hydrogen to one of oxygen, are burned in a jet, under pressure. It gives a heat that will consume the diamond, fuse platinum, and dissipate in vapor, or in gaseous forms, most known substances. [ 1913 Webster ]

2. A blowgun; a blowtube. [ 1913 Webster ]

Blowpipe analysis (Chem.), analysis by means of the blowpipe. --
Blowpipe reaction (Chem.), the characteristic behavior of a substance subjected to a test by means of the blowpipe. [ 1913 Webster ]

n. See Catcall. [ 1913 Webster ]

n. A pipe for carrying off waste water, etc., from a sink or cesspool. Knight. [ 1913 Webster ]

n. a pipe{ 3 } for smoking tobacco with a bowl made from a corncob. [ PJC ]

n. A pipe used for carrying off surplus water. [ 1913 Webster ]

n. A pipe for forcing into the earth. [ 1913 Webster ]

n. One of the low-toned tubes of a bagpipe. [ 1913 Webster ]

n. a hardy deciduous American vine (Aristolochia durior) having large, heart-shaped leaves and bearing brownish-purple flowers which have their calyx tubes curved like the bowl of a tobacco pipe. Formerly classified as Aristolochia Sipho.
Syn. -- pipe vine, Aristolochia macrophylla, Aristolochia durior. [ 1913 Webster + WordNet 1.5 ]

n. [ Gr. 'epi`pedos on the ground, level ('epi` + pe`don ground) + -metry. ] (Geom.) The mensuration of figures standing on the same base. [ Obs. ] [ 1913 Webster ]

a. [ Pref. epi- + peripheral. ] (Physiol.) Connected with, or having its origin upon, the external surface of the body; -- especially applied to the feelings which originate at the extremities of nerves distributed on the outer surface, as the sensation produced by touching an object with the finger; -- opposed to entoperipheral. H. Spenser. [ 1913 Webster ]

a. [ Pref. epi- + petal. ] (Bot.) Borne on the petals or corolla. [ 1913 Webster ]

. (Music) A pipe, esp. an organ pipe, whose tone is produced by the impinging of a current of air upon an edge, or lip, causing a wave motion in the air within; a mouth pipe; -- distinguished from reed pipe. Flue pipes are either open or closed (stopped at the distant end). The flute and flageolet are open pipes; a bottle acts as a closed pipe when one blows across the neck. The organ has both open and closed flue pipes, those of metal being usually round in section, and those of wood triangular or square. [ Webster 1913 Suppl. ]

n. a hole in the bow of a ship, through which the anchor rope or cable passes.
Syn. -- hawse, hawsepipe. [ 1913 Webster + WordNet 1.5 ]

n. (Mining) The upper terminal pipe of a mining pump. Raymond. [ 1913 Webster ]

n. (Mus.) (a) An instrument of music formerly popular in Wales, consisting of a wooden pipe, with holes at intervals. It was so called because the bell at the open end was sometimes made of horn. (b) A lively tune played on a hornpipe, for dancing; a tune adapted for such playing. [ 1913 Webster ]

Many a hornpipe he tuned to his Phyllis. Sir W. Raleigh.

(c) A dance performed, usually by one person, to such a tune, and popular among sailors. [ 1913 Webster ]

n. A flexible pipe for conveying a liquid or gas.
Syn. -- hose. [ WordNet 1.5 ]

‖n. [ NL., fr. Gr. "y`dwr water + L. piper a pepper.] (Bot.) A species (Polygonum Hydropiper) of knotweed with acrid foliage; water pepper; smartweed. [1913 Webster]

n. [ Obs. ] See Liripoop. [ 1913 Webster ]

n. pl., A primitive wind instrument, consisting of a series of short hollow reeds or pipes, graduated in length by the musical scale, and fastened together side by side; a syrinx; a mouth organ; -- said to have been invented by the god Pan. Called also pipes of Pan, Pan's pipes and Panpipes. [ 1913 Webster ]

n. (Geometry) A prism whose bases are parallelograms.
Syn. -- parallelopiped, parallelepipedon, parallelopipedon. [ WordNet 1.5 ]

n. (Geometry) Same as parallelepiped.
Syn. -- parallelepiped, parallelopiped, parallelopipedon. [ WordNet 1.5 ]

n. [ Gr. para`llhlos parallel + 'epi`pedon a plane surface, 'epi`pedos on the ground, or level with it, level, flat; 'epi` on + pe`don the ground: cf. F. parallélopipède. ] (Geom.) A solid, the faces of which are six parallelograms, the opposite pairs being parallel, and equal to each other; a prism whose base is a parallelogram.
Syn. -- parallelepiped, parallelepipedon, parallelopipedon. [ 1913 Webster ]

n. [ NL. ] A parallelopiped. Hutton. [ 1913 Webster ]

n. [ AS. pīpe, probably fr. L. pipare, pipire, to chirp; of imitative origin. Cf. Peep, Pibroch, Fife. ] 1. A wind instrument of music, consisting of a tube or tubes of straw, reed, wood, or metal; any tube which produces musical sounds; as, a shepherd's pipe; the pipe of an organ. “Tunable as sylvan pipe.” Milton. [ 1913 Webster ]

Now had he rather hear the tabor and the pipe. Shak. [ 1913 Webster ]

2. Any long tube or hollow body of wood, metal, earthenware, or the like: especially, one used as a conductor of water, steam, gas, etc. [ 1913 Webster ]

3. A small bowl with a hollow stem, -- used in smoking tobacco, and, sometimes, other substances. [ 1913 Webster ]

4. A passageway for the air in speaking and breathing; the windpipe, or one of its divisions. [ 1913 Webster ]

5. The key or sound of the voice. [ R. ] Shak. [ 1913 Webster ]

6. The peeping whistle, call, or note of a bird. [ 1913 Webster ]

The earliest pipe of half-awakened birds. Tennyson. [ 1913 Webster ]

7. pl. The bagpipe; as, the pipes of Lucknow. [ 1913 Webster ]

8. (Mining) An elongated body or vein of ore. [ 1913 Webster ]

9. A roll formerly used in the English exchequer, otherwise called the Great Roll, on which were taken down the accounts of debts to the king; -- so called because put together like a pipe. Mozley & W. [ 1913 Webster ]

10. (Naut.) A boatswain's whistle, used to call the crew to their duties; also, the sound of it. [ 1913 Webster ]

11. [ Cf. F. pipe, fr. pipe a wind instrument, a tube, fr. L. pipare to chirp. See Etymol. above. ] A cask usually containing two hogsheads, or 126 wine gallons; also, the quantity which it contains. [ 1913 Webster ]

Pipe fitter, one who fits pipes together, or applies pipes, as to an engine or a building. --
Pipe fitting, a piece, as a coupling, an elbow, a valve, etc., used for connecting lengths of pipe or as accessory to a pipe. --
Pipe office, an ancient office in the Court of Exchequer, in which the clerk of the pipe made out leases of crown lands, accounts of cheriffs, etc. [ Eng. ] --
Pipe tree (Bot.), the lilac and the mock orange; -- so called because their were formerly used to make pipe stems; -- called also pipe privet. --
Pipe wrench, or
Pipe tongs, a jawed tool for gripping a pipe, in turning or holding it. --
To smoke the pipe of peace, to smoke from the same pipe in token of amity or preparatory to making a treaty of peace, -- a custom of the American Indians. [ 1913 Webster ]

v. i. 1. To play on a pipe, fife, flute, or other tubular wind instrument of music. [ 1913 Webster ]

We have piped unto you, and ye have not danced. Matt. xi. 17. [ 1913 Webster ]

2. (Naut.) To call, convey orders, etc., by means of signals on a pipe or whistle carried by a boatswain. [ 1913 Webster ]

3. To emit or have a shrill sound like that of a pipe; to whistle. “Oft in the piping shrouds.” Wordsworth. [ 1913 Webster ]

4. (Metal.) To become hollow in the process of solodifying; -- said of an ingot, as of steel. [ 1913 Webster ]

v. t. [ imp. & p. p. Piped p. pr. & vb. n. Piping. ] 1. To perform, as a tune, by playing on a pipe, flute, fife, etc.; to utter in the shrill tone of a pipe. [ 1913 Webster ]

A robin . . . was piping a few querulous notes. W. Irving. [ 1913 Webster ]

2. (Naut.) To call or direct, as a crew, by the boatswain's whistle. [ 1913 Webster ]

As fine a ship's company as was ever piped aloft. Marryat. [ 1913 Webster ]

3. To furnish or equip with pipes; as, to pipe an engine, or a building. [ 1913 Webster ]

v. t. 1. To whiten or clean with pipe clay, as a soldier's accouterments. [ 1913 Webster ]

2. To clear off; as, to pipeclay accounts. [ Slang, Eng. ] [ 1913 Webster ]

A plastic, unctuous clay of a grayish white color, -- used in making tobacco pipes and various kinds of earthenware, in scouring cloth, and in cleansing soldiers' equipments. [ 1913 Webster ]

a. Formed with a pipe; having pipe or pipes; tubular. [ 1913 Webster ]

n. (Zool.) Any lophobranch fish of the genus Siphostoma, or Syngnathus, and allied genera, having a long and very slender angular body, covered with bony plates. The mouth is small, at the end of a long, tubular snout. The male has a pouch on his belly, in which the incubation of the eggs takes place. [ 1913 Webster ]

n., or . 1. One who lays conducting pipes in the ground, as for water, gas, etc. [ 1913 Webster ]

2. (Polit. Cant) A politician who works in secret; -- in this sense, usually written as one word. [ U.S. ] [ 1913 Webster ]

n., or . 1. The laying of conducting pipes underground, as for water, gas, etc. [ 1913 Webster ]

2. (Polit. Cant) The act or method of making combinations for personal advantage secretly or slyly; -- in this sense, usually written as one word. [ U.S. ] [ 1913 Webster ]

. 1. A line of pipe with pumping machinery and apparatus for conveying liquids, gases, or finely divided solids, such as petroleum or natural gas, between distant points. [ Webster 1913 Suppl. +PJC ]

2. fig. an information channel direct from the source. [ PJC ]

3. the set of stages and processes from the invention or design of a product to its ultimate use, production, or commercial sale. Used commonly in the phrase
in the pipeline, i. e. still in preparation or under development. [ PJC ]

v. t. To convey by a pipe line; to furnish with a pipe line or pipe lines. [ Webster 1913 Suppl. ]

n. (Zool.) Any fish of the genus Fistularia; -- called also tobacco pipefish. See Fistularia. [ 1913 Webster ]

‖n. [ L. ] See Pepper. [ 1913 Webster ]

n. 1. (Mus.) One who plays on a pipe, or the like, esp. on a bagpipe. “The hereditary piper and his sons.” Macaulay. [ 1913 Webster ]

2. (Zool.) (a) A common European gurnard (Trigla lyra), having a large head, with prominent nasal projection, and with large, sharp, opercular spines. (b) A sea urchin (Goniocidaris hystrix) having very long spines, native of both the American and European coasts. [ 1913 Webster ]

To pay the piper, to bear the cost, expense, or trouble. [ 1913 Webster ]

a. [ L. piper pepper. ] (Bot.) Of or pertaining to the order of plants (Piperaceæ) of which the pepper (Piper nigrum) is the type. There are about a dozen genera and a thousand species, mostly tropical plants with pungent and aromatic qualities. [ 1913 Webster ]

a. (Chem.) Pertaining to, or derived from, or designating, a complex organic acid found in the products of different members of the Pepper family, and extracted as a yellowish crystalline substance. [ 1913 Webster ]

n. (Bot.) Same as Pepperidge. [ 1913 Webster ]

n. (Chem.) An oily liquid alkaloid, C5H11N, having a hot, peppery, ammoniacal odor. It is related to pyridine, and is obtained by the decomposition of piperine. [ 1913 Webster ]

n. [ L. piper pepper: cf. F. piperin, piperine. ] (Chem.) A white crystalline compound of piperidine and piperic acid. It is obtained from the black pepper (Piper nigrum) and other species. [ 1913 Webster ]

n. (Chem.) A white crystalline substance obtained by oxidation of piperic acid, and regarded as a complex aldehyde. [ 1913 Webster ]

n. [ Piperidine + acetylene. ] (Chem.) A hydrocarbon obtained by decomposition of certain piperidine derivatives. [ 1913 Webster ]

n. The hollow stem or tube of a pipe used for smoking tobacco, etc. [ 1913 Webster ]

Took a long reed for a pipestem. Longfellow. [ 1913 Webster ]