A Dictionary of terms used in medicine and the collateral sciences / by Richard D. Hoblyn.
- Richard Hoblyn
- Date:
- 1859
Licence: Public Domain Mark
Credit: A Dictionary of terms used in medicine and the collateral sciences / by Richard D. Hoblyn. Source: Wellcome Collection.
Provider: This material has been provided by the Woodruff Health Sciences Center Library at Emory University, through the Medical Heritage Library. The original may be consulted at the Woodruff Health Sciences Center Library, Emory University.
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![2. ^Ether aulphuricua ■ rectificatua. L. Rectified ether. This is the ethereal liquor sold under the names of Ether, and Sul- phuric or Vitriolic Ether. 3. uEther nitroeua. Nitrous ether, or the Najththa Nitri. 4. JEther sulphuricus. L. Sulphuric or Vitriolic ether, or Naphtha Vitrioli. ^ETHIOPS (aidu, to burn; &ip, the eye). The name of a medicine, so called from its black appearance, resembling that of the JEthiop. 1. JEthiops mineral. The black sulphu- ret of mercury, or the Hydraryyri aulphu- retum cum sulphur e. L. [Hydraryyri sufphuretum nigrum. U. S.] As an an- thelmintic, it has received the name of pou- dre vermifuge mercurielle. 2. ^Ethiops per ae. The name given by Boerhave to the gray oxide formed by long agitation of mercury in a bottle half full of air. 3. jEthiop8 veyetabilis. A name given to a species of charcoal, prepared by burn- ing the fucus vesiculosus in the open air, and reducing it to a black powder. 4. JEthiops antimonialia. A term applied in Germany to a compound of the hydrar- yyri sulphuretum cum 8u/phure with sul- phuret of antimony. 5. jEthiopa Martial. An old name for the deutoxide of iron. ^ETHOGEN (aWwv, brilliant; yuvofiai, to become). A compound of boron and nitrogen, lately discovered by Mr. Bal- main. It gives a brilliant phosphorescent light when heated before the blowpipe. J3THRI0SC0PE (aWpia, serene wea- ther; oKortfw, to examine). An instrument invented by Sir John Leslie for indicating the power of the clouds in preventing radi- ation. It consists of the differential ther- mometer, having one of the balls excluded from the light, and the other placed in a polished metallic cup. Exposed to a clear jiart of the sky, the heat radiated from it escapes rapidly, a.nd the temperature falls; exposed to a cloud, the radiated heat is re- stored, and there is no reduction of tem- perature. iETHUSA CYNAPIUM. Lesser Hem- lock, or Fool's Parsley; a plant of the order Umbelliferce, possessing poisonous properties. It yields an alkaloid, called cyuopia. iETIOLOGY (atria, a cause; \6ybs, a treatise). The doctrine of the causes of disease. iETITES LAPIS (atrbg, an eagle). Ka^le-stone, a variety of iron ore; so called from the belief that it was found in the nest of the eagle, where it was sup- posed to prevent the eggs from becoming rotten. [AFFECTION {officio, to disturb). A term nearly synonymous with disease.] [AFFERENT (ad, to, and/ero, to carry). Afferena, bringing to. Applied to the lymphatic vessels, because they convey lymph to the lymphatic glands.] AFFINITY (affinitaa, relationship). That kind of attraction by which different classes of bodies combine to form new bo- dies, as in the case of an acid with an al- kali, forming a salt. The term was intro- duced from the idea that*chemical attrac- tion takes place between those substances only which resemble each other. 1. Single affinity is the power by which two elementary bodies combine. 2. Elective affinity denotes the prefe- rence which one body manifests in com- bining with another, rather than with a third, a fourth, &c. 3. Double elective affinity occurs when two compounds decompose each other, and two new compounds are formed, by an exchange of elements. This is also called double decomposition, or complex affinity. 4. Quiescent affinity is that which tends to maintain the elements of a compound in their present state, preventing decom- position. This, and the following term, were introduced by Kirwan. 5. Divellent affinity is that which tends to arrange the particles of a compound in a new form, producing decomposition. In mixing different compounds, if the sum total of the divellent be more powerful than that of the quiescent affinities, decomposi- tion takes place. 6. Disposing affinity is that which pro- motes the tendency of bodies to combine in a particular way, by presenting to them a third substance which exerts a strong attraction to the compound they form; when the combination has been effected, the third substance may be withdrawn. Some writers call this tendency to unite, the affinity of. intermedium. Berthollet styles it reciprocal affinity. 7. Berthollet distinguishes affinity into elementary, when it takes place between the elementary parts of bodies ; and re- sulting, when it is a compound only, and would not take place with the elements of that compound. [AFFIX. Something added to the end of a word. A list of the principal affixes in connection with their compounds is given in the Appendix.] AFFLATUS (afflo, to blow to). A blast, vapour, or blight. A species of erysipelas, which attacks persons suddenly.](https://iiif.wellcomecollection.org/image/b2103753x_0033.jp2/full/800%2C/0/default.jpg)
