before a vowel zym-, combining form repr. Gr. ζύμη leaven, used in the general sense ‘ferment,’ in various scientific terms. (Some of these were formerly written zumo-, the Gr. υ being represented, contrary to analogy, by u: see Y.) Zymocyte [-CYTE], a unicellular organism that produces fermentation. Zymogluconic a., epithet of an acid obtained by fermentation from glucose; hence Zymogluconate, a salt of this acid. ǁ Zymohydrolysis, hydrolysis effected by the action of a ferment. Zymology († zumo-) [-LOGY], the science of fermentation; that department of chemistry which deals with ferments and their action; hence Zymological († zumo-) a., relating to zymology; Zymologist († zumo-), one versed in zymology. Zymolysis [Gr. λύσις loosening], decomposition by means of a (esp. an unorganized) ferment; so Zymolytic a., pertaining to or involving zymolysis. Zymometer († zumo-) [-METER] = ZYMOSIMETER. Zymophore, Zymophoric, Zymophorous adjs. [see -PHORE, etc.], in Ehrlich’s theory of immunization, applied to a particular group of atoms in a ferment, or in the receptors of a living cell, to which the fermentative action is due (analogous to the toxophore group in a toxin). Zymophyte [-PHYTE], a vegetable organism that causes fermentation. Zymoplastic a. [see PLASTIC a.], forming a ferment. Zymoscope [-SCOPE]: see quot. Zymotechnic, -ical adjs. [Gr. τεχνή art], relating to the art of fermentation; so Zymotechnics, Zymotechny, the art of fermentation (cf. ZYMURGY); Zymotechnology [-LOGY], the scientific study of the principles of zymotechny; Zymotechnologist, one versed in zymotechnology. Zymotoxic a., having a fermentative and toxic action.
a. 1909. Disinfectants, 14 (Cent. D. Suppl.). Salicylic acid only holding its reputation as an enemy to the *zymocytes of the cider barrel.
1887. Jrnl. Chem. Soc., LII. 468. The crystallised ammonium gluconate recently described by Volpert … had previously been obtained by the author [sc. L. Boutroux], and described by him as ammonium *zymogluconate. Ibid. (1886), L. 682. The *zymogluconic acid obtained by the action of M[icrococcus] oblongus on glucose.
1903. C. Snyder, New Concept. Sci., 236. Croft Hill’s bold announcement, three or four years ago, of the discovery of ‘reversible *zymohydrolysis.’
1823–32. Webster, *Zumlogical, *Zumologist.
1846. Worcester, Zymological, Zymologist (citing Oswald).
1753. Chambers’s Cycl. Supp., *Zymology [referring to W. Simpson’s Zymologia Physica, 1675].
1828–32. Webster, Zumology.
1890. A. S. Lea, in Jrnl. Physiol., XI. 254, note. I would suggest that the word *‘zymolysis’ might be … used to denote generally the changes produced by the enzymes or unorganised ferments. Ibid., 264. The *zymolytic activity of the digestive fluid.
1842. Brande, Dict. Sci., etc., *Zumometer, or Zumosimeter.… an instrument intended to show the degree to which fermentation has proceeded in different fermenting liquors.
1900. U.S. Dept. Agric., Bur. Anim. Ind., Rep. 257 (Cent. D. Suppl.). The hypothesis of Morgenroth in regard to the existence of a haptophore group and the [sic; ? a] *zymophore group in the labile ferment has been recently verified by Myers and Bashford, who have discovered zymoids analogous to the toxoids.
1902. Brit. Med. Jrnl., 12 April, 920. There is no amboceptor as such, but the body consists of a *zymophoric group.
1890. Billings, Med. Dict., *Zymophytes, bacteroid ferments that liberate fatty acids from neutral fats.
1868. Watts, Dict. Chem., V. 1086. *Zymoscope. An instrument … for testing the fermenting power of yeast, by bringing it in contact with sugar-water, and observing the quantity of carbonic anhydride evolved.
1896. A. K. Miller, trans. E. C. Hansen’s Ferment., 71. Ancker and Bergh’s *zymotechnic laboratory, Stockholm.
1900. trans. A. Jörgensen’s Micro-org. & Ferment., 47. *Zymotechnical examinations of water according to the principles laid down by Hansen.
1896. A. K. Miller, trans. E. C. Hansen’s Ferment., 113. Several *zymotechnologists have made similar experiments.
1860. Mayne, Expos. Lex., *Zymotechny.
1902. Jrnl. Exper. Med., 17 March, 282. The complement possesses in addition to such a … haptophore group, another group which exhibits fermentative properties (*zymotoxic or toxophore group).
