turnsole


turn·sole

T0424900 (tûrn′sōl′)n.1. Any of various plants that move or are believed to move in response to the sun, especially the Mediterranean species Chrozophora tinctoria.2. See heliotrope.
[Middle English turnesole, dye made from C. tinctoria, from Old French tournesol, from Old Italian tornasole : tornare, to turn (from Latin tornāre; see turn) + sole, sun (from Latin sōl; see sāwel- in Indo-European roots).]

turnsole

(ˈtɜːnˌsəʊl) n1. (Plants) any of various plants having flowers that are said to turn towards the sun2. (Plants) a euphorbiaceous plant, Croton tinctoria, of the Mediterranean region that yields a purple dye3. (Dyeing) the dye extracted from this plant[C14: from Old French tournesole, from Old Italian tornasole, from tornare to turn + sole sun, from Latin sōl sun]

turn•sole

(ˈtɜrnˌsoʊl)

n. 1. any of several plants regarded as turning with the movement of the sun. 2. a European plant, Chrozophora tinctoria, of the spurge family, yielding a purple dye. 3. the dye itself; litmus. [1325–75; Middle English turnesole < Middle French tournesol < Italian tornasole, literally, (it) turns (toward the) sun, on the model of Greek hēliotrópion heliotrope]