=ACCOM′PANIMENTS.= In _cookery_ and _housekeeping_, see TRIMMINGS. =ACCUMULA′TION.= [Eng., Fr.] _Syn._ ACCUMULA′TIO, L. In _medicine_, a term applied when the effects of the first dose of any substance still continue when the second is administered (accumulation of action); or when several doses of insoluble substances remain inactive in the system until their energy is developed by chemical influence (accumulation of doses). See MEDICINES, POISONS, &c. =ACEPH′ALANS.= _Syn._ ACEPH′ALA, CUV. In _malacology_, a class of aquatic mollusca, having no apparent head, but a mouth between the folds of their mantle. Several of them, as the oyster, cockle, mussel, scallop, &c., are consumed for food. =ACERB′ITY.= _Syn._ ACERB′ITAS, L.; ACERBITÉ, Fr.; HERBIGKEIT, Ger. In _chemistry_, &c., sourness, with bitterness and astringency, or harshness. See CIDER, FRUIT, WINE, &c. =ACERBO’S ANTI-RHEUMATIC AND ANTI-CATARRH OIL.= For various horse diseases. Gum euphorbium, 10 parts; absolute alcohol, 10 parts; olive oil, 80 parts. Digest in a warm-water bath for 24 hours, then boil until all the spirit has evaporated, and, when cold, strain through cotton. (Hager.) =ACER′IDES.= Plasters that do not contain wax. =ACES′CENT.= _Syns._ ACES′CENS, L.; ACESCENT, AIGRELET, Fr.; SÄURLICH, Ger. In _chemistry_, &c., growing sour; slightly tart or acid; having a tendency to sourness, or to run into the acetic fermentation, as _wine_, _beer_, _malt-wort_, &c. Hence, ACES′CENCE or ACES′CENCY (_acescen′tia_, L.; _acescense_, _aigreur_, Fr.; _säurlichkeit_, Ger.), the tendency to become slightly acid, or the quality of being so. See ACETIFICATION, MALT-LIQUORS, WINE, WORT, &c. =ACETA′′RIOUS= (-tāre′-e-ŭs). Used for salads (as plants); relating to salads (which see). =AC′ETATE= (ăs′-). _Syn._ ACE′TAS, L.; ACETATE, Fr.; ESSIGSÄURE SALZE, Ger. In _chemistry_, a salt consisting of C_{2}H_{3}O_{2} (sometimes called the acid-radical of the acetates) with hydrogen, a metal, or a compound basic radical; _e.g._, Hydrogen acetate (acetic acid) HC_{2}H_{3}O_{2} Potassium acetate KC_{2}H_{3}O_{2} Lead (plumbic) acetate Pb(C_{2}H_{3}O_{2})_{2} Ammonium acetate NH_{4}C_{2}H_{3}O_{2} Salts of acetic acid (HC_{2}H_{3}O_{2}) with the alkaloids are likewise termed acetates; _e.g._, Morphia acetate C_{17}H_{19}NO_{3} . C_{2}H_{4}O_{2} _Prep._ That of the commercial acetates, and of many others, is noticed under the respective metals. In general, they may all be formed by direct solution of the carbonate, hydrate or oxide of the metal whose acetate it is desired to form, in dilute acetic acid; or from a solution of an acetate and of another salt of the metal, by double decomposition. In either case, the resulting solution must be carefully evaporated by a gentle heat, and, where possible, crystallised.