Associations to the word «Roccella»

Wiktionary

ROCCELLA, noun. Any of a group of lichens of genus Roccella, especially Rocella tinctoria from which litmus is extracted.
ROCCELLA, proper noun. A taxonomic genus within the family Roccellaceae   — fungi that form lichens.

Dictionary definition

ROCCELLA, noun. A source of the dye archil and of litmus.

Wise words

A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used.
Oliver Wendell Holmes, Jr.