The Collaborative International Dictionary
Usage examples of "tinctorium".
As litmus paper, colored by the Earth lichen, rocella tinctoria shows the presence of acid or alkali by its color change, so Ganymedian cree reacted to the ammoniated atmosphere of the planet.
It gave him particular pleasure to make the acquaintance of woad, the isatis tinctoria, from the juice of which a dark blue could be extracted.
Roccella tinctoria is a small, dry, perennial lichen, in appearance a bunch of wavy, tapering branched, drab-coloured stems from 2 to 6 inches high, springing from a narrow base.