\. 1 S< I NCY 



26 



ACETYLENE 



somewhat sour, j A disease of wines, whereby they 

 become sour owing to tin- agenc) yterma aceti. 



Acescency See A 



Acescent , to become soar] . Some- 



what acid <>r tart; acidulous. 



Aceia Plura] 



Acetable :-/>l) [acetabulum, a small cup]. An 



old name fi ■< the 'um. 



Acetabular | fabulum, a small cup]. 



Pertaining t" the acetabulum. 



Acetabuliferous 'if-er-us) [a u ■"'/, a 



small cup; to bear]. Having suckers, as the 



arm- of cuttle fishes and ^> ]iii< Is. 



Acctabuliform ( i) [acetabulum, a small 



cup; forma, form]. Having the form of the acetab- 

 ulum, or of a shallow cup ; cotyloid, or glenoid. 



Acetabulum u - lum) [l... a small cup or 



measure]. In biology, any cup shaped cavity or 

 .in. The articulating cavity of the head of the 

 femur, or the leg of an insect ; one of the suckers on 

 the arm phalopods, or on the scolex of a tape- 



worm; the receptacle of certain fungi and lichens. 



Acetal [acetum, vinegar], C 6 H M 2 . F.thi- 



dene diethylate, a colorless, mobile liquid, with an 

 ethereal odor, produced by the imperfect oxidation of 

 alcohol under the influence of platinum black. Spar- 

 ingly soluble in water; boils at 104° ('. ; sp. gr. at 20 

 ;. Its action is that of a soporific. Dose 5 j. 



Acetaldehyd [as-et-al , -de-hld'\. The normal aldehyd ; 

 ethaldehyd. See Aldehyd. 



Acetals (as / -et-alz) [acetum, vinegar]. Products of 

 the combination of aldehyds with the alcohols at 

 ioo° C. 



Acetamid ' ,( H 5 NO. A white crystal- 



line solid produced by distilling ammonium acetate, or 

 by heating ethyl acetate with strong aqueous ammonia. 

 It combines with both acids and metals to form 

 unstable compounds. 



Acetanilid [as-et-an'-il-id), C 8 H 9 NO. A white, crys- 

 talline solid. Produced by boiling anilin and glacial 

 acetic acid together 1 ral hours; the crystalline 



- i- thru distilled. It melts at II4 and boils at 

 - '. It is soluble in hot water, alcohol and ether. 

 I nder the name antifebrin it is prescribed as an anti- 

 pj reti< . I >ose gr. iij-xv. 



Acetarium {as-et-a* -re-um) [gen.,Acetarii: pi., Aceta- 

 ria~\. A pickle or salad. A. Scorbuticum, a pickle 

 ntaining leaves of scurvy-grass or other anti -scor- 

 butic plant- ; used in the treatment of scorbutic cases. 

 »f. 



Acetary (as* [acetum, vinegar]. An obsolete 



or rare name for a -our pulpy substance found in pears 

 and some other fruits ; often enclosed within a congeries 

 granules. 



Acetate 'um, vinegar]. Any salt of 



A. of Lead, plumbi acetas. Si-.- Plumbum. 



Acetic 1 ' tik) [acetum, vinegar]. Pertaining to 

 turn or vinegar ; -our. See Acid ', Acetic : A. Fer- 

 mentation, the development of acetic acid by the 

 tivity of the M / aceti. 



Acetin [a ' t-in) [acetum, vinegar]. A chemical com- 

 pound formed I •• the union of glycerin and aceti' acid. 



Acetolatum. ati:pl., I 



■■'-/]. Distilled variously aromatized or 



medicated. 



Acetolature {as-et-ol' -at-ur) [acetolaturum]. Any 

 acetous tincture, or medii and vinegar. 



Acetometer [acetum, vim 



mea-ure]. An instrument \\-<>\ in the quantitive de- 

 tr rmination 1 >t a< 1 tii acid. 



Acetometry {as-et-om' -et-re) [acetum, vim -<n>r, 



measure]. The quantitive estimation of the amount 



of acetic acid in vinegar. Usually made by an ar, to- 

 rn t : 

 Acetone dn) [acetum, vinegar], CjH 6 0. Dime- 



thyl Ketone. A colorless, mobile liquid, of peculiar 

 odor and burning taste; present in crude wood-spirit; 

 it occurs in small quantities in the blood and in 

 normal urine, and in considerable quantities in the 

 mine of diabetics. Like methyl alcohol it is miscible 

 in all proportions with ether, alcohol, and water. It 

 1- an excellent solvent foi resins, gums, camphor, fats, 



and gun 1 1 itt< >n, 

 Acetones fas^-et-dnz). A das- of compounds that may 

 be regarded a- consisting of two alcoholic radicals 

 united by the group CO, or as aldehyds in which hj 

 drogen of the group COH has been replaced by an 



alcoholic radical. 



Acetonemia (as-et-o-ne / -me-aA) [acetone; di/xa, blood.] 

 The presence of acetone in the blood. It may re- 

 sult from a number of diseases, but is characteristic of 

 chronic diabetes, and is associated with dyspnea, sub- 

 normal temperature, lowered pulse rate, etc. The 

 patient finally falls into coma. The treatment consists 

 in increasing the secretions and by removing the 

 causes of the diseases. 



Acetonuria [as-et-on-u' f -re-aK) [acetone; oipov, urine]. 

 The presence of acetone in the urine. 



Acetophenone [as-et-o-fe , -non), C 6 H 5 (CO)(CH 8 ). 

 '• Hypnone;" a hypnotic and antiseptic. Without 

 satisfactory action. I lose injv-xv. It results from the 

 action of zinc methyl upon benzoyl chlorid. < rvstal- 

 lizes in large plates, melts at 20. 5 , and boils at 202 . 



Acetosella [as-et-o-sel'-ah). See Oxa/is acetosella. 



Acetous (as-e'-tus) [acetum, vinegar]. Like or resem- 

 bling vinegar ; pertaining to, or charged with vinegar 

 or acetic acid. 



Acetoxim [as-et-oks* '-im) , (CH 8 ) 2 C.N.OH. A com 

 pound formed by the action of hydroxylamin upon 

 acetone ; readily soluble in water, alcohol and ether ; 

 fuses at 6o°, boils at 135°. 



Acetoxims (as-et-oks'-imz). See Aldoxims. 



Acetphenetidin (as-t'/-fe->wt r -it/-i>i). See Phenacetin. 



Acetum, {as-e'-tum) [gen., Aceta: pi., Aceti]. ['-■]• 

 Vinegar. An impure, dilute acetic acid produced by- 

 acetous fermentation of wine, cider, or other fruit juice. 

 See Fermentation. In pharmacy, a solution of the active 

 principles of certain drugs in dilute acetic acid. There 

 are four official aceta, each of which contains the solu- 

 ble principles of ten per cent, of its weight, viz., of 

 lobelia, opium, sanguinaria, and squill ; the acetumoi 

 cantharides is official in (ireat Britain. A. aromat- 

 icum (N. F.) ["aromatic vinegar"], a mixture of 

 alcohol, water and acetic acid, aromatized with the 

 oils of rosemary, lavender, juniper, peppermint, cassia, 

 lemon and clove-. A. britannicum, an aromatic 

 vinegar consisting of glacial acetic acid 600.0, cam- 

 phor 60.0, oil of cloves 2.0, oil of cinnamon 1 .0, oil 

 of lavender 0.5. 



Acetyl (as'-et-il) [acetum, vinegar], (C 2 H s O). A uni- 

 valent radical supposed to exist in acetic acid and 



it- derivatives. Aldehyd maj be regarded a- the 



hydrid ami acetic acid a- the hydrate, of acetyl. A. 

 Peroxid, (< II <>'',. a thick liquid, insoluble in 

 water, but readily dissolved bj ether and alcohol. 

 It i- a powerful oxidizing agent. It i- decomposed 

 in sunlight and explodes violently when heated. 

 Acetylene (as-et'-il-en) [acetum, vinegar], C 2 H 2 . A 

 colt is, with a characteristic and very unpleas- 



ant odor, burning with a luminous, smoky flame. 

 Illuminating gas contains a small amount of it. 

 Formed by the imperfect combustion of illuminating 

 gas and other hydrocarbons. The. acetylene series oi 

 hydrocarbons ha- the general formula, < n II iD _ 2. 



