roccella

About 0.01 uses per million words.

Meaning

1. noun Any of a group of lichens of genus Roccella, especially Rocella tinctoria from which litmus is extracted.

Similar words

roccella tinctoria litmus erythrolitmin terra rossa ribbonite leucazolitmin rubicel rockallite roscoelite lac dye

Often followed by

ej tinctoria fuciformis