heliotrope Meaning, Definition & Usage

  1. noun green chalcedony with red spots that resemble blood
    bloodstone.

WordNet

He"li*o*trope noun
Etymology
F. héliotrope, L. heliotropium, Gr. the sun + to turn, turn. See Heliacal, Trope.
Definitions
  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. H. 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).

Webster 1913