[ 'hi:lɪətrəʊp , 'hɛl- ]
■ noun a plant of the borage family, cultivated for its fragrant purple or blue flowers. [Genus Heliotropium .]
Origin
OE eliotropus (orig. applied to various plants whose flowers turn towards the sun), via L. from Gk hēliotropion , from hēlios 'sun' + trepein 'to turn'.