/
ˈhiːlɪətrəʊp,
ˈhɛl-/
n.
a plant of the borage family, cultivated for its fragrant purple or blue flowers.
[Genus
Heliotropium.]
Etymology
OE eliotropus (orig. applied to various plants whose flowers turn towards the sun), via L. from Gk hēliotropion, from hēlios ‘sun’ + trepein ‘to turn’.