| 释义 |
triacid, n. and a.|traɪˈæsɪd|
[f. tri- + acid a. and n.]
A. n. [partial tr. G. triacidlösung ‘three-acid solution’.] A biological stain consisting of methyl green, orange G, and acid fuchsin. Also attrib.
1896A. B. Lee Microtomist's Vade-Mecum (ed. 4) xviii. 223 Ehrlich's Triacid Mixture.—According to a custom which, I believe, originated with Ehrlich himself, and which would, perhaps, be better honoured in the breach than the observance, the name of Triacid (‘Triacidlösung’) has been given to a mixture of the same three dyes as in the Ehrlich-Biondi mixture, but in such proportions that the ‘acid’ colours therein have a larger share assigned to them. 1899[see polychromatic a. 2]. 1929Slider & Downey in C. E. McClung Handbk. Microsc. Technique vii. 248 The triacid stain is used for five minutes. Ibid., Triacid contains methyl green, orange G and acid fuchsin. 1976P. Collard Devel. of Microbiol. v. 54 In 1880 he [sc. P. Ehrlich] published an account of his famous tri-acid stain for the differential staining of leucocytes.
B. adj. Of a triglyceride: containing three different acid radicals in the molecule.
1945Chen & Daubert in Jrnl. Amer. Chem. Soc. LXVII. 1256/1 ‘Triacid triglycerides’ is used in this report to describe those triglycerides consisting of three different fatty acids. 1977Appl. Spectrosc. XXXI. 122/1 Seven diacid and five triacid saturated triglycerides have been investigated by infrared spectroscopy. |