- (n.) A plant of the genus Heliotropium; -- called also turnsole and girasole. H. Peruvianum is the commonly cultivated species with fragrant flowers.
- (n.) See Bloodstone (a).
- (n.) An instrument for making signals to an observer at a distance, by means of the sun's rays thrown from a mirror.
- (n.) An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). heliotrope. Retrieved September 25, 2026, from http://smartdefine.org/heliotrope/definitions/2015715 |
| Chicago | Webster's. 2011. "heliotrope" http://smartdefine.org/heliotrope/definitions/2015715 (accessed September 25, 2026). |
| Harvard | Webster's 2011, heliotrope, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/heliotrope/definitions/2015715>. |
| MLA | Webster's. "heliotrope" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/heliotrope/definitions/2015715> |