‖n.; pl. Abattoirs [ F., fr. abattre to beat down. See Abate. ] A public slaughterhouse for cattle, sheep, etc. [ 1913 Webster ]

‖n. [ F. abattre to beat down + voix voice. ] The sounding-board over a pulpit or rostrum. [ 1913 Webster ]

‖n. [ F., a watering place. ] (Masonry) The joint or interstice between stones, to be filled with mortar. Gwilt. [ 1913 Webster ]

a. [ Acaleph + -oid. ] (Zool.) Belonging to or resembling the Acalephæ or jellyfishes. [ 1913 Webster ]

adj. 1. 1 shaped like a spine or thorn
Syn. -- spinous [ WordNet 1.5 ]

a. [ NL., acarus a mite + -oid. ] (Zool.) Shaped like or resembling a mite. [ 1913 Webster ]

v. t. [ OE. acoillir to receive, F. accueillir; L. ad + colligere to collect. See Coil. ] 1. To gather together; to collect. [ Obs. ] Spenser. [ 1913 Webster ]

2. (Naut.) To coil together. Ham. Nav. Encyc. [ 1913 Webster ]

a. [ Gr. &unr_;, &unr_;, ray + -oid. ] Having the form of rays; radiated, as an actinia. [ 1913 Webster ]

n. 1. (Med.) Lymphoid tissue in the roof of the nasopharynx; -- often in the pl. Stedman 25. [ AS ]

2. (Med.) A swelling produced by overgrowth of adenoid{ 1 } tissue; -- usually in pl. AS [ Webster 1913 Suppl. ]

adj. 1. (Med.) Of or relating to a gland. [ AS ]

2. (Med.) Pertaining to adenoids{ 2 }. Merriam Webster Medical Dictionary. [ AS ]

{ a. Glandlike; glandular. [ 1913 Webster ]

v. t. [ imp. & p. p. Adjoined p. pr. & vb. n. Adjoining. ] [ OE. ajoinen, OF. ajoindre, F. adjoindre, fr. L. adjungere; ad + jungere to join. See Join, and cf. Adjunct. ] To join or unite to; to lie contiguous to; to be in contact with; to attach; to append. [ 1913 Webster ]

Corrections . . . should be, as remarks, adjoined by way of note. Watts. [ 1913 Webster ]

v. i. 1. To lie or be next, or in contact; to be contiguous; as, the houses adjoin. [ 1913 Webster ]

When one man's land adjoins to another's. Blackstone. [ 1913 Webster ]

☞ The construction with to, on, or with is obsolete or obsolescent. [ 1913 Webster ]

2. To join one's self. [ Obs. ] [ 1913 Webster ]

She lightly unto him adjoined side to side. Spenser. [ 1913 Webster ]

a. Contiguous. [ Obs. ] Carew. [ 1913 Webster ]

a. Joining to; contiguous; adjacent; as, an adjoining room. “The adjoining fane.” Dryden. [ 1913 Webster ]

Upon the hills adjoining to the city. Shak. [ 1913 Webster ]

Syn. -- Adjacent; contiguous; near; neighboring; abutting; bordering. See Adjacent. [ 1913 Webster ]

n. An adjunct; a helper. [ Obs. ] [ 1913 Webster ]

a. [ F. adroit; à (L. ad) = droit straight, right, fr. L. directus, p. p. of dirigere. See Direct. ] Dexterous in the use of the hands or in the exercise of the mental faculties; exhibiting skill and readiness in avoiding danger or escaping difficulty; ready in invention or execution; -- applied to persons and to acts; as, an adroit mechanic, an adroit reply. “Adroit in the application of the telescope and quadrant.” Horsley. “He was adroit in intrigue.” Macaulay. [ 1913 Webster ]

Syn. -- Dexterous; skillful; expert; ready; clever; deft; ingenious; cunning; ready-witted. [ 1913 Webster ]

adv. In an adroit manner. [ 1913 Webster ]

n. The quality of being adroit; skill and readiness; dexterity. [ 1913 Webster ]

Adroitness was as requisite as courage. Motley. [ 1913 Webster ]

Syn. -- See Skill. [ 1913 Webster ]

n. [ Aëro- + foil. ] A plane or arched surface for sustaining bodies by its movement through the air; a spread wing, as of a bird. [ Webster 1913 Suppl. ]

a. Goīng before; foregoing. [ 1913 Webster ]

n. [ Gr. 'a`gnoia ignorance + -logy. ] (Metaph.) The doctrine concerning those things of which we are necessarily ignorant. [ 1913 Webster ]

adv. [ Pref. a- + p. pr. of go. ] In motion; in the act of going; as, to set a mill agoing. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. &unr_; cat + -oid. ] (Zool.) A group of the Carnivora, which includes the cats, civets, and hyenas. [ 1913 Webster ]

n. 1. 1 a surface such as the wing of an airplane designed to provide reactive force when in motion relative to the surrounding air.
Syn. -- aerofoil [ WordNet 1.5 ]

[ See Poise. ] An instrument to measure the weight of air. [ 1913 Webster ]

{ ‖ } n. pl. [ From Albi and Albigeois, a town and its district in the south of France, in which the sect abounded. ] (Eccl. Hist.) A sect of reformers opposed to the church of Rome in the 12th centuries. [ 1913 Webster ]

The Albigenses were a branch of the Catharists (the pure). They were exterminated by crusades and the Inquisition. They were distinct from the Waldenses. [ 1913 Webster ]

n. The state or condition of being an albino; albinism. [ 1913 Webster ]

a. [ L. albumen + -oid. ] (Chem.) Resembling albumin. -- n. One of a class of organic principles (called also proteids) which form the main part of organized tissues. Brunton. [ 1913 Webster ]

a. (Chem.) Of the nature of an albuminoid. [ 1913 Webster ]

a. [ Gr. 'alkyo`nion + -oid. ] (Zool.) Like or pertaining to the Alcyonaria. -- n. A zoöphyte of the order Alcyonaria. [ 1913 Webster ]

{ or }. (Med.) Same as Aden ulcer. [ Webster 1913 Suppl. + AS ]

a. [ L. alga + -oid. ] Of the nature of, or resembling, an alga. [ 1913 Webster ]

{ } a. [ L. ala wing + E. ethomoid. ] (Anat.) Pertaining to expansions of the ethmoid bone or cartilage. [ 1913 Webster ]

n. (Anat.) The alisphenoid bone. [ 1913 Webster ]

{ } a. [ L. ala wing + E. sphenoid. ] (Anat.) Pertaining to or forming the wing of the sphenoid; relating to a bone in the base of the skull, which in the adult is often consolidated with the sphenoid; as, alisphenoid bone; alisphenoid canal. [ 1913 Webster ]

. Any one of various soils found in arid and semiarid regions, containing an unusual amount of soluble mineral salts which effloresce in the form of a powder or crust (usually white) in dry weather following rains or irrigation. The basis of these salts is mainly soda with a smaller amount of potash, and usually a little lime and magnesia. Two main classes of alkali are commonly distinguished: black alkali, which may be any alkaline carbonate, but which practically consists of sodium carbonate (sal soda), which is highly corrosive and destructive to vegetation; and white alkali, characterized by the presence of sodium sulphate (Glauber's salt), which is less injurious to vegetation. Black alkali is so called because water containing it dissolves humus, forming a dark-colored solution which, when it collects in puddles and evaporates, produces characteristic black spots. [ Webster 1913 Suppl. ]

n. (Chem.) An organic base, especially one of a class of nitrogen-containing substances occurring ready formed in the tissues of plants and the bodies of animals. [ 1913 Webster ]

☞ Alkaloids all contain nitrogen, carbon, and hydrogen, and many of them also contain oxygen. They include many of the active principles in plants; thus, morphine and narcotine are alkaloids found in opium. [ 1913 Webster ]

{ } a. [ Alkali + -oid: cf. F. alcaloïde. ] 1. Pertaining to, resembling, or containing, alkali. [ 1913 Webster ]

2. of or pertaining to alkaloids. [ WordNet 1.5 ]

a. [ Cf. F. allantoïque. ] Pertaining to, or contained in, the allantois. [ 1913 Webster ]

Allantoic acid. (Chem.) See Allantoin. [ 1913 Webster ]

{ ‖ } n.. (Anat.) A membranous appendage of the embryos of mammals, birds, and reptiles, -- in mammals serving to connect the fetus with the parent; the urinary vesicle. [ 1913 Webster ]

{ } a. [ Gr. &unr_; shaped like a sausage; &unr_; sausage + e'i^dos form. ] (Anat.) Of or pertaining to the allantois. [ 1913 Webster ]

‖n. pl. [ NL. ] (Zool.) The division of Vertebrata in which the embryo develops an allantois. It includes reptiles, birds, and mammals. [ 1913 Webster ]

n. (Chem.) A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid. [ 1913 Webster ]

a. Changeable in color. [ 1913 Webster ]

n. (Min.) See Garnet. [ 1913 Webster ]

n. (Chem.) A bitter purgative principle in aloes. [ 1913 Webster ]

adj. Resembling an amoeba especially in the shape or manner of motion
Syn. -- amoeboid [ WordNet 1.5 ]

a. [ Amianthus + -oid: cf. F. amiantoïde. ] Resembling amianthus. [ 1913 Webster ]

a. (Zool.) Like or pertaining to the Amioidei. -- n. One of the Amioidei. [ 1913 Webster ]