Quincy's Lexicon-medicum : a new medical dictionary, containing an explanation of the terms in anatomy, physiology, practice of physic, materia medica, chymistry, pharmacy, surgery, midwifery, and the various branches of natural philosophy connected with medicine / selected, arranged, and compiled, from the best authors by Robert Hooper.

  • Robert Hooper
Date:
1817
Catalogue details

Licence: Public Domain Mark

Credit: Quincy's Lexicon-medicum : a new medical dictionary, containing an explanation of the terms in anatomy, physiology, practice of physic, materia medica, chymistry, pharmacy, surgery, midwifery, and the various branches of natural philosophy connected with medicine / selected, arranged, and compiled, from the best authors by Robert Hooper. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

    34/886
    53 jEtiiiots avtimonaims. A prepara- tion of antimony and mercury, once in high repute, and still employed by some practi- tioners in cutaneous diseases. A few grains are to be given at first, and the quantity in- creased as tlie stomach can bear it. jEthiops marti a lis. A preparation of iron, former!) in repute, but now neglected. jEthiops mineral. The substance heretofore known by this name, is called, by the London College, HydrargyrUs cum sulphure ; by the Edinburgh, Sulphuretum Hydrargyri nigrum; and by that of Dublin, Hydrargyrum sulphuralum nigrum. JEthmoid artery. See Ethmoid artery. JEthmoid bone. See Ethmoid hone. Ithxa. Achymical furnace. jEthoces. Mthuliceg. Superficial pus- tules in the skin, raised by heat, as boils, fiery pustides. yETHUSA. (From «/5so-*, beggarly.) The name of a genus of plants of the Lin- iia:an system. Class, l'entandna. Order, Digynia. vEthusa meum. Tlie systematic name of the meum of the Pharmacopoeias. See .Meum Athamanticuni. Ithya. A morlar. jEtioi phlebeS. Eagle veins. The veins which pass through tlie temples to the head, were so called formerly by llufus Ephesius. -ETIOLOGY. (Am»Mj>*i: from aili*, a cause,and Koyo;, a discourse.) The doctrine of the causes of diseases. jEtocion. Mtolium. The granumc ni- dium. /EroNYcmuM. See Lithospermum. AFFECTION. (This is expressed in Greek by iar*()o;: hence pathema, pussio.) This term indicates any existing disorder of the whole body, or a part of it, as hysterics, colic, leprosy] Thus by adding a descrip- tive epithet to the term affection, most distempers may be expressed. We say febrile affection, cutaneous affection, &c. using the word affection synonymously with disease. AFFINITY. CAffinitas, a proximity of relationship.) The term affinity is used indifferently wii'n attraction. See Attrac- tion. Affinity of Aggregation. See Attraction *f Aggregation. Affinity of Composition. See Attraction, chymical. Affinity, compound. V or more bodies, on account of their mutual affinity, unite and form one homogeneous body, then the affinity is termed compound affinity or attraction: thus, if to a volution of sugar and water be added spirits of wine, these three bodies will form a homogeneous li- quid by compound affinity. See Attraction. Affinity, double. Double elective attrac- When two bqdies, each consisting of AFF two elementary parts-, come into contact, and are decomposed, so that theirelem become reciprocally united, and pro two new compound bodies, the decomposi- tion is then termed, decomposition by dou- ble affinity: thus, if we add common salt, which consists of muriatic acid and soda, to nitrate of silver, which is composed of nitric acid and silver, these two bodies will be decompounded ;for the nitric acid unites with tlie soda, and the silver with <he muri- atic acid, and thus may be obtained two new bodies. The common salt and nitrate of silver therefore mutually decompose each other by what is called double affinity. See Attraction. Affinity, intermediate. Appropriate affi- nity. Affinity oi an intermedium—is, when two substances of different kinds, that show to one another no component affinity, do, by the assistance of a third, combine, and unite into a homogeneous whole: thus, oil and water arc substances of different kinds, which, by means of alkali, combine and unite into an homogeneous substance: hence the theory of lixiviums, of washing, &c. See Attraction. Affinity, quiescent. Mr. Kirwan employs the term Quiescent affinity to mark that, by- virtue of which, the principle of each com- pound of two bodies, decomposed by dou- ble affinity, adhere to each other; and Divellert affinity, to distinguish that by which the principles of one body unite and change order with those of the other : thus sulphate of potash or vitriolated tartar is not completely decomposed by the nitric acid or by lime, when either of these prin- ciples is separately presented; but if the nitric acid be combined with lime, this nitrate of lime will decompose the sulphate of potash. In this last case the affinity of the sulphuric acid with the alkali is Weak- ened by its affinity to the lime This acid, therefore, is subject to two affinities, the one which retains it to the alkali, called qui- escent, and the other which attracts it towards the lime, called divellent affinity. Affinity, divellent. See. iffimity quiescent. Affinity reciprocal. When a compound of two bodies is decomposed by a third; tlie separated principle being in Us turn capable of decomposing the new combina- tion. Affinity, ample. Single elective Attrac- tion. It a body consisting of two compo- nent parts, be decomposed on the approach of a third, which has a greater affinity with one of those component parts than with the other, then the decomposition is termed decomposition by simple affinity ; for in- stance, if pure potash be added to a com- bination of nitric acid and lime, the union which existed between these two bodies will cease, because the potash combines witk the nitric acid, and the lime being