▪ I. chromotrope
(ˈkrəʊmətrəʊp)
Also -trop.
[a. G. chromotrop, f. chromo- 2 + Gr. -τροπος turning.]
An acid colour used in dyeing. Also attrib.
| 1893 E. Knecht et al. Man. Dyeing 536 A (new) dioxynaphthalene disulphonic acid (so-called chromotrop acid). Ibid. 537 The chromotrops do not dye evenly on previously mordanted wool. Ibid. 539 The chromotrop-blacks. 1902 Encycl. Brit. XXVII. 562/2 Chromotrope..is an Acid Colour which is applied to wool in an acid bath in the usual manner. 1906 Dyer 20 Jan. 15/1 Lactic acid is used in chromotrope dyeing. 1959 Chambers's Encycl. IV. 689/2 (caption) Chromotrope acid. |
▪ II. chromotrope
var. chromatrope.