n. Acetic aldehyde. See Aldehyde. [ 1913 Webster ]

a. [ Gr. &unr_; without juice. ] (Physiol.) Without chyle. [ 1913 Webster ]

a. [ Gr. &unr_; without juice. ] (Physiol.) Without chyme. [ 1913 Webster ]

n. [ F. acouchi, from the native name Guiana. ] (Zool.) A small species of agouti (Dasyprocta acouchy). [ 1913 Webster ]

n. [ Adeno- + -graphy. ] That part of anatomy which describes the glands. [ 1913 Webster ]

n. [ Adeno- + Gr. pa`qos suffering, paqei^n to suffer. ] (Med.) Pathological enlargement of a lymph node. [ AS ]

a. [ Adeno- + Gr. fy`llon leaf. ] (Bot.) Having glands on the leaves. [ 1913 Webster ]

{ ‖, n. [ NL. aërenchyma. See Aëro-; Enchyma. ] (Bot.) A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces. [ Webster 1913 Suppl. ]

n. [ Aëro- + -graphy: cf. F. aérographie. ] A description of the air or atmosphere; aërology. [ 1913 Webster ]

a. [ Aëro- + hydrodynamic. ] Acting by the force of air and water; as, an aërohydrodynamic wheel. [ 1913 Webster ]

n. [ Aëro- + Gr. fyto`n plant, fy`ein to grow: cf. F. aérophyte. ] (Bot.) A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte. [ 1913 Webster ]

n. [ Gr. &unr_; to perceive + E. physiology. ] The science of sensation in relation to nervous action. H. Spenser. [ 1913 Webster ]

n. [ Gr. &unr_; + -graphy. ] A description of the grasses. [ 1913 Webster ]

adj. 1. fit to fly; -- said of aircraft. Opposite of unairworthy. [ WordNet 1.5 ]

a., n., a., n. See Alchemic, Alchemist, Alchemistic, Alchemy. [ 1913 Webster ]

n. [ Abbrev. fr. alcohol dehydrogenatum, alcohol deprived of its hydrogen. ] 1. (Chem.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation. [ 1913 Webster ]

2. (Chem.) Any compound having the group -CHO. Methyl aldehyde, the simplest aldehyde, is more commonly called formaldehyde, H-CHO, and acetic aldehyde is now more commonly called acetaldehyde. The higher aldehydes may be solids. A reducing sugar typically contains the aldehyde group. [ PJC ]

☞ The aldehydes are intermediate between the alcohols and acids, and differ from the alcohols in having two less hydrogen atoms in the molecule, as common aldehyde (called also acetaldehyde, acetic aldehyde or ethyl aldehyde), C2H4O; methyl aldehyde (called also formaldehyde), CH2O. [ 1913 Webster +PJC ]

Aldehyde ammonia (Chem.), a compound formed by the union of aldehyde with ammonia. [ 1913 Webster ]

a. (Chem.) Of or pertaining to aldehyde; as, aldehydic acid. Miller. [ 1913 Webster ]

n. [ Gr. &unr_; cock + &unr_; fight. ] Cockfighting. [ 1913 Webster ]

n. [ Gr. &unr_; cock + &unr_; fight. ] Cockfighting. [ 1913 Webster ]

n. [ Gr. &unr_; other + &unr_; suffering, &unr_;, &unr_;, to suffer: cf. G. allopathie, F. allopathie. See Pathos. ] That system of medical practice which aims to combat disease by the use of remedies which produce effects different from those produced by the special disease treated; -- a term invented by Hahnemann to designate the ordinary practice, as opposed to homeopathy. [ 1913 Webster ]

{ } a. [ Gr. &unr_; of another tribe; &unr_; other + &unr_; class or tribe. ] Pertaining to a race or a language neither Aryan nor Semitic. J. Prichard. [ 1913 Webster ]

n. [ Alumin-ium + -graphy. ] Art or process of producing, and printing from, aluminium plates, after the manner of ordinary lithography. -- A*lu`mi*no*graph"ic a. [Webster 1913 Suppl.]

[ F. ametiste, amatiste, F. améthyste, L. amethystus, fr. Gr. &unr_; without drunkenness; as a noun, a remedy for drunkenness, the amethyst, supposed to have this power; 'a priv. + &unr_; to be drunken, &unr_; strong drink, wine. See Mead. ] [ 1913 Webster ]

1. (Min.) A variety of crystallized quartz, of a purple or bluish violet color, of different shades. It is much used as a jeweler's stone. [ 1913 Webster ]

Oriental amethyst, the violet-blue variety of transparent crystallized corundum or sapphire. [ 1913 Webster ]

2. (Her.) A purple color in a nobleman's escutcheon, or coat of arms. [ 1913 Webster ]

a. [ L. amethystinus, Gr. &unr_;. ] 1. Resembling amethyst, especially in color; bluish violet. [ 1913 Webster ]

2. Composed of, or containing, amethyst. [ 1913 Webster ]

n. [ Gr. &unr_;: cf. F. amorphie. See Amorphous. ] Shapelessness. [ Obs. ] Swift. [ 1913 Webster ]

n. [ Gr. &unr_; embossed + -graphy. ] The art of copying works in relief, or of engraving as to give the subject an embossed or raised appearance; -- used in representing coins, bas-reliefs, etc. [ 1913 Webster ]

n. fld>(Med.) Of or pertaining to anaphylaxis; caused by anaphylaxis. [ PJC ]

n. fld>(Med.) Shock resulting from anaphylaxis{ 2 }. It is a severe form of physiological shock, often having a fatal outcome, and is caused by an extreme immunological reaction to antigens. It is characterized by smooth muscle contraction and capillary dilation throughout the body, initiated by antibodies of the IgE class. It is usually seen when an antigen to which a person has become hypersensitized is injected intravenously or subcutaneously. It is also called generalyzed anaphylaxis or systemic anaphylaxis, and sometimes anaphylaxis. [ Stedman ] [ PJC + AS ]

n. sn>1. [ Gr. 'ana` back, way from + fy`laxis security, protection. ] 1. (Med.) Hypersensitivity (to a foreign antigen) resulting from prior contact with the same or a related substance. [ WordNet 1.5 + AS ]

2. (Med.) An immediate but transient systemic reaction to an antigenic substance to which a person has become hypersensitized; it is characterized by the contraction of smooth muscle and capillary dilation. [ Stedman ] [ PJC + AS ]

The cascade of events is triggered by binding of the foreign antigen to immunoglobulin E and release of mediators such as histamine, bradykinin, serotonin, and slow-reacting substance from mast cells. It involves more than one organ system. The most commonly involved organs are skin, cardiovascular, respiratory and gastrointestinal systems. Anaphylaxis is manifested by a range of signs and symptoms including pruritus, urticaria, itching, dyspnea, abdominal pain and cardiovascular collapse (shock). A severe form of the reaction is called anaphylactic shock. [ Stedman ] [ PJC + AS ]

3. (Med) Anaphylactic shock. [ AS ]

‖n. [ Gr. 'ana` back + &unr_; offshoot. ] (Anat.) An accessory process in many lumbar vertebræ. [ 1913 Webster ]

n. [ Gr. &unr_;: cf. F. anarchie. See Anarch. ] 1. Absence of government; the state of society where there is no law or supreme power; a state of lawlessness; political confusion. [ 1913 Webster ]

Spread anarchy and terror all around. Cowper. [ 1913 Webster ]

2. Hence, confusion or disorder, in general. [ 1913 Webster ]

There being then . . . an anarchy, as I may term it, in authors and their re&unr_;koning of years. Fuller. [ 1913 Webster ]

v. t. & i. [ imp. & p. p. Anchylosed p. pr. & vb. n. Anchylosing. ] [ Cf. F. ankyloser. ] To affect or be affected with anchylosis; to unite or consolidate so as to make a stiff joint; to grow together into one. [ Spelt also ankylose. ] Owen. [ 1913 Webster ]

‖ n. [ NL., fr. Gr. 'agky`lwsis, fr. 'agkyloy^n to crook, stiffen, fr. 'agky`los crooked: cf. F. ankylose. ] 1. (Med.) The process of formation of a stiff joint; also, the abnormal adhesion and rigidity of the bones of a joint which has become stiff. Dunglison. [ 1913 Webster + AS ]

2. (Anat.) The union of two or more separate bones to from a single bone; the close union of bones or other structures in various animals. [ 1913 Webster ]

a. Of or pertaining to anchylosis. [ 1913 Webster ]

n. [ Gr. 'a`nemos wind + -graphy. ] 1. A description of the winds. [ 1913 Webster ]

2. The art of recording the direction and force of the wind, as by means of an anemograph. [ 1913 Webster ]

n. A mixture of methyl chloride and ethyl chloride; it is used as a local anesthetic, by spraying onto the skin. [ WordNet 1.5 ]

‖n. [ Gr. &unr_; receptacle + &unr_;. Formed like Parenchyma. ] (Bot.) Vascular tissue of plants, consisting of spiral vessels, dotted, barred, and pitted ducts, and laticiferous vessels. [ 1913 Webster ]

n. [ Angio- + -graphy: cf. F. angiographie. ] 1. (Anat.) A description of blood vessels and lymphatics. [ 1913 Webster ]

2. (Med.) A diagnostic procedure in which the location and size of blood vessels may be visualized by taking an X-ray photograph after injecting a radiopaque substance into the blood stream. AS [ PJC ]

1. (Med.) Neuropathy of the neurons innervating blood vessels. Called also Angioneurosis, Vasomotor neurosis, Vasoneurosis. [ AS ]

2. (Med) Angiopathic neuropathy. [ AS ]

n. [ Angio- + Gr. pa`qos disease. ] (Med.) Disease of the vessels, esp. the blood vessels. [ Webster 1913 Suppl. ]

n. [ See Anhydrous. ] (Chem.) An oxide of a nonmetallic body or an organic radical, capable of forming an acid by uniting with the elements of water; -- so called because it may be formed from an acid by the abstraction of water. [ 1913 Webster ]

n. [ See Anhydrous. ] (Min.) A mineral of a white or a slightly bluish color, usually massive. It is anhydrous sulphate of lime, and differs from gypsum in not containing water (whence the name). [ 1913 Webster ]

a. [ Gr. &unr_; wanting water; 'an priv. + "y`dwr water.] Destitute of water; as, anhydrous salts or acids. [1913 Webster]

a. [ Gr. &unr_; unequal + &unr_; leaf. ] (Bot.) Having unequal leaves. [ 1913 Webster ]

a. [ Gr. &unr_; irregular + &unr_; leaf. ] (Bot.) Having leaves irregularly placed. [ 1913 Webster ]

n. [ Gr. 'a`nw upward (fr. 'ana` up) + fyto`n a plant, fy`ein to grow. ] (Bot.) A moss or mosslike plant which cellular stems, having usually an upward growth and distinct leaves. [ 1913 Webster ]

n. [ Gr. 'a`nqos flower + -graphy. ] A description of flowers. [ 1913 Webster ]

n. [ NL. anthophyllum clove. ] A mineral of the hornblende group, of a yellowish gray or clove brown color. -- An`tho*phyl*lit"ic a. [1913 Webster]

n. [ Gr. 'a`nqrwpos man + geography. ] The science of the human species as to geographical distribution and environment. Broadly, it includes industrial, commercial, and political geography, and that part of ethnology which deals with distribution and physical environment. -- An`thro*po*ge*og"ra*pher n. -- An`thro*po*ge`o*graph"ic*al a. [ Webster 1913 Suppl. ]

n. [ Gr. 'a`nqrwpos man + -graphy. ] That branch of anthropology which treats of the actual distribution of the human race in its different divisions, as distinguished by physical character, language, institutions, and customs, in contradistinction to ethnography, which treats historically of the origin and filiation of races and nations. P. Cyc. [ 1913 Webster ]