A comprehensive medical dictionary : containing the pronunciation, etymology, and signification of the terms made use of in medicine and the kindred sciences.

Joseph Thomas

Date:: 1865

Credit: A comprehensive medical dictionary : containing the pronunciation, etymology, and signification of the terms made use of in medicine and the kindred sciences. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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$a, prir., pfiv, a month, and piia, to flow.] Absence or stoppage of the menstrual discharge, including Emansio mensium and Suppresaio mensium. A-men'ta,*the plural of Amentum, which see. Aiiieiitacea?,* am-en-ta'she-e. [From amenta1ceus. See next article.] The Jussieuan name of an order of plants now distributed among different orders. A-men-ta'ceous. [Amenta'ceus; from amen'turn.] Having an amentum. Amentia,* a-men'she-a. [From a, priv., and mens, the mind.] Idiocy; fatuity; imbecility of mind. A genus of the order Vesanise, class \euroses, of Cul- len'a Nosology. See Dementia. A-iiien'tum,:;:' plural A-men'ta. [From «/i,ua, a thong.] A catkin, or imperfect flower, somewhat like a rope or cat's tail. Also termed Nucamentum. Amer(Fr.), a'maiR'. (Bitter.) The bitter principle produced by digesting silk in nitric acid. American Balsam. See Balsam of Peru. American Gasnbog-e. See Gamboge. A-mer'i-can Seu'na. The common name for Cassia Marilandiea. Am'e-tnyst. [Amethys'tns; from a, priv., and /isOuukco, to make drunk.] A violet-colorei gem, a species of rock crystal. Its name is derived from its reputed virtue of preventing intoxica- tion: topers were formerly in the habit of wearing it about their necks. It con- sists almost entirely of silica. Am-i-an'thoid, or Ani-i-an'tohl. [Amianthoi'des, or Amiantoi'de's; from amian'thus or amian'tus, a fossil, fibrous stone.] Resembling amianthus. Am-i-an'tliiis.* [From a, priv., and piaivu), to defile.] Literally, that which cannot be defiled; because cloth made of it could always be purified by burning. Mountain flax; an incombus- tible mineral, consisting of very delicate and regular silky fibres. See Asbestos. Amide, avnied'. A saline compound, in which a compound of nitrogen and hydrogen occurs, containing an atom less of hydrogen than ammonia. Ami-din. [Amidi'na; from the French, amidon, starch.] A substance intermediate between gum and starch, obtained by the solution of the latter in hot water. Amilen or Amilene, am'e-len. A liquid hydro-carbon, obtained by dis- tilling hydrate of oxide of amyl repeat- edly with anhydrous phosphoric acid. Ammi. See Sisox Ammi. Am-mo'ni-a.:;- The volatile alkali; ammoniacal gas. A transparent, color- less, pungent gas, formed by the union of nitrogen and hydrogen. By Priestley it was called alkaline airj it is called the volatile alkali to distinguish it from the fixed alkalies,—soda and pot- ash. Its present name is derived from sal ammoniac, of which it constitutes a basis, and which received its appellation from being first prepared in the dis- trict of Ammonia, in Libya. A m-mo-n i a-cal. [Ammoniaca- lis.] Belonging to ammonia. Ammoni'acal Al'um. A double salt, consisting of the sulphate of am- monia and alumina, the potassa of com- mon alum being replaced by ammonia. Ammoni'acal Gas. Ammonia, the volatile alkali. Am-mo-ni'a-cum.* [From Anuwv, a name of Jupiter, who had his temple in a part of Libya, where the tree chiefly grew.] The Pharmacopoeial name j| of a gum resin, from the Dore'ma ammoni'a- cum: ammo'niac, or gum-ammo'niac. Ain-mo'ni-se L.i'«pior.* (Liquor of Ammonia.) The name of the concentrated solution of ammonia. One volume of water takes up about 750 times its bulk of the gas, forming a liquid possessed of similar properties, and termed spirits of hartshorn from its being produced by distillation from that substance. Anunoniaqne, am'ino'iic-ak'. The French term for Ammonia, which see. Am mo-iiite. [Ammoni'tes; from Jupiter Am'mon ; worshipped as a ram.] A kind of petrified shell, like a horn or snake. From its resemblance to the horns of the statues of Jupiter Amnion, it is called Cor'nu Ammo'nis, horn of Amnion. From its coiled form it is popularly known as snake-stone. Am-mo'ni-um.* The supposed me- tallic base of ammonia. Ammoninret, am-mon'yu-ret. [Ammoniure'tum.] A combination of ammonia with a metallic oxide. Am-ne'sS-a,* Am=nes'ti-a.* [From a, priv., and fivnan;, remembrance.] Want of memory: forgetfulness. Am'ni-i, Id'quor.* The fluid con- tained in the amnion. Aan'nl-on.* [From d^ivoi, a lamb.] The soft, most internal membrane, con- taining the waters which surround the foetus in utero. Also called Agnina tunica. Am'nl-o-tate. [Amni'otas, a'tts.] Amniotic acid combined with a base.$