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An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.

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  1. n. An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.
  2. n. A plant of the genus Heliotropium; -- called also turnsole and girasole. H. Peruvianum is the commonly cultivated species with fragrant flowers.
  3. n. An instrument for making signals to an observer at a distance, by means of the sun's rays thrown from a mirror.
  4. n. See Bloodstone (a).
  5. n. green chalcedony with red spots that resemble blood
  6. 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). Heliotrope purple, a grayish purple color.
  7. An instrument or machine for showing when the sun arrived atthe tropics and equinoctial line.
  8. n:100 n green chalcedony with red spots that resemble blood