[hee-lee-an-thuh s] /ˌhi liˈæn θəs/
noun, plural helianthuses.
any composite plant of the genus Helianthus, comprising the sunflowers.
noun (pl) -thuses
any plant of the genus Helianthus, such as the sunflower and Jerusalem artichoke, typically having large yellow daisy-like flowers with yellow, brown, or purple centres: family Asteraceae (composites)
noun 1. (NZ) the sport of snowboarding on mountains or glaciers accessible only by helicopter or skiplane
[hel-uh-bawrn, -bohrn] /ˈhɛl əˌbɔrn, -ˌboʊrn/ adjective 1. transported by helicopter: heliborne troops.
1. variant of before a vowel: helical.
[hel-i-kuh l, hee-li-] /ˈhɛl ɪ kəl, ˈhi lɪ-/ adjective 1. pertaining to or having the form of a ; spiral. /ˈhɛlɪkəl/ adjective 1. of or shaped like a helix; spiral adj. “spiral-shaped,” 1590s, from Latin helicem (see helix) + -al (1). helical hel·i·cal (hěl’ĭ-kəl, hē’lĭ-) adj.