from
The Collaborative International Dictionary of English v.0.48
Heliotrope \He"li*o*trope\, n. [F. h['e]liotrope, L.
heliotropium, Gr. ?; ? the sun + ? to turn, ? turn. See
{Heliacal}, {Trope}.]
1. (Anc. Astron.) An instrument or machine for showing when
the sun arrived at the tropics and equinoctial line.
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2. (Bot.) A plant of the genus {Heliotropium}; -- called also
{turnsole} and {girasole}. {Heliotropium Peruvianum} is
the commonly cultivated species with fragrant flowers.
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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.
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4. (Min.) See {Bloodstone}
(a) .
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{Heliotrope purple}, a grayish purple color.
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