[hee-lee-uh-trohp, heel-yuh- or, especially Brit., hel-yuh-] 
| 1. | any hairy plant belonging to the genus Heliotropium, of the borage family, as H. arborescens, cultivated for its small, fragrant purple flowers. |
| 2. | any of various other plants, as the valerian or the winter heliotrope. |
| 3. | any plant that turns toward the sun. |
| 4. | a light tint of purple; reddish lavender. |
| 5. | Surveying. an arrangement of mirrors for reflecting sunlight from a distant point to an observation station. |
| 6. | bloodstone. |
[bluhd-stohn] | a greenish variety of chalcedony with small bloodlike spots of red jasper scattered through it. |
| blood·stone (blŭd'stōn') n. A variety of deep-green chalcedony flecked with red jasper. Also called heliotrope. |
| he·li·o·trope (hēl'lē-ə-trōp') n.
[Middle English elitrope (from Old English eliotropus) and French héliotrope, both from Latin hēliotropium, from Greek hēliotropion : hēlio-, helio- + tropos, turn; see trope.] he'li·o·trope' adj. |
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