| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024turn•sole (tûrn′sōl′),USA pronunciation n. - Plant Biologyany of several plants regarded as turning with the movement of the sun.
- Plant Biologyheliotrope (def. 2).
- Plant Biologya European plant, Chrozophora tinctoria, of the spurge family, yielding a purple dye.
- the purple dye prepared from this plant;
litmus.
- Italian tornasole the plant, literally, (it) turns (toward the) sun, on the model of Greek hēliotrópion heliotrope
- Middle French tournesol the dye
- Middle English turnesole 1325–75
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