[hel-i-keys, hee-li‐] /ˈhɛl ɪˌkeɪs, ˈhi lɪ‐/
any of the enzymes that use the energy derived from the hydrolysis of nucleoside triphosphates to unwind the double-stranded helical structure of nucleic acids:
RNA and DNA helicases.
[hee-list, hel-ist] /ˈhi lɪst, ˈhɛl ɪst/ adjective 1. decorated with spirals.
[hel-uh-seez] /ˈhɛl əˌsiz/ noun 1. a plural of . [hee-liks] /ˈhi lɪks/ noun, plural helices [hel-uh-seez] /ˈhɛl əˌsiz/ (Show IPA), helixes. 1. a spiral. 2. Geometry. the curve formed by a straight line drawn on a plane when that plane is wrapped around a cylindrical surface of any kind, especially a right circular cylinder, as […]
[hel-i-krahy-suh m, hee-li-] /ˌhɛl ɪˈkraɪ səm, ˌhi lɪ-/ noun 1. any of the numerous composite plants of the genus Helichrysum, having alternate leaves and solitary or clustered flower heads, including the strawflower. /ˌhɛlɪˈkraɪzəm/ noun 1. any plant of the widely cultivated genus Helichrysum, whose flowers retain their shape and colour when dried: family Asteraceae (composites)
- Helicine artery
helicine artery n. Any of the coiled arteries in the erectile tissue of the penis.