archil ii
61litmus — /lit meuhs/, n. a blue coloring matter obtained from certain lichens, esp. Roccella tinctoria. In alkaline solution litmus turns blue, in acid solution, red: widely used as a chemical indicator. [1495 1505; earlier lytmos < ON litmosi dye moss,… …
62orchil — /awr kil, chil/, n. 1. a violet coloring matter obtained from certain lichens, chiefly species of Roccella. 2. any lichen yielding this dye. Also called archil, orseille. [1475 85; < OF] * * * ▪ dye also called Archil, a violet dye… …
63orchella — SYN: archil. * * * or·chel·la (or shelґə) a histologic stain composed of 5 mL of acetic acid and 40 mL each of alcohol and water, colored to a dark red with archil from which excess of ammonia has been driven off …
64orchil — SYN: archil. * * * orchil var of ARCHIL …
65Orceína — Orceina Nombre (IUPAC) sistemático …
66Pertusaria — noun crustose lichens that are a source of the dye archil and of litmus • Syn: ↑genus Pertusaria • Hypernyms: ↑fungus genus • Member Holonyms: ↑Pertusariaceae, ↑family Pertusariaceae * * * ˌpərd.əˈsa( …
67C7H7NO3 — Orcein Or ce*in, n. (Chem.) A reddish brown amorphous dyestuff, {C7H7NO3}, obtained from orcin, and forming the essential coloring matter of cudbear and archil. It is closely related to litmus. [1913 Webster] …
68Erythroleic — Er y*thro le*ic, a. [Gr. eryqro s red + L. oleum oil.] (Chem.) Having a red color and oily appearance; applied to a purple semifluid substance said to be obtained from archil. [1913 Webster] …
69Orcein — Or ce*in, n. (Chem.) A reddish brown amorphous dyestuff, {C7H7NO3}, obtained from orcin, and forming the essential coloring matter of cudbear and archil. It is closely related to litmus. [1913 Webster] …
70Orchal — Or chal, n. See {Archil}. [1913 Webster] …
