An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.
- Any of several plants of the genus Heliotropium, especially H. arborescens, native to Peru and having small, highly fragrant purplish flowers. Also called turnsole.
- The garden heliotrope.
- Any of various plants that turn toward the sun.
- See bloodstone.
- A moderate, light, or brilliant violet to moderate or deep reddish purple.