<p><strong>Noun:</strong></p><ul><li>any hairy plant belonging to the genus Heliotropium, of the borage family, as H. arborescens, cultivated for its small, fragrant purple flowers.</li><li>any of various other plants, as the valerian or the winter heliotrope.</li><li>any plant that turns toward the sun.</li><li>a light tint of purple; reddish lavender.</li><li>an arrangement of mirrors for reflecting sunlight from a distant point to an observation station.</li><li>bloodstone.</li></ul>