he·lio·trope /ˈhiliəˌtrop, ˈhiljə, ||ˈhɛljə-/
天芥菜屬植物,該植物的花香,淡紫色
He·li·o·trope n.
1. Anc. Astron. An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.
2. Bot. A plant of the genus Heliotropium; -- called also turnsole and girasole. Heliotropium Peruvianum is the commonly cultivated species with fragrant flowers.
3. Geodesy & Signal Service An instrument for making signals to an observer at a distance, by means of the sun's rays thrown from a mirror.
4. Min. See Bloodstone (a).
Heliotrope purple, a grayish purple color.
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heliotrope
n : green chalcedony with red spots that resemble blood [syn: bloodstone]