Definify.com

Webster 1913 Edition

Adj.

[From

Of or pertaining to, or in the form of, a helix; spiral;

as, a

helical

staircase; a

helical

spring.

–

Hel′i-cal-ly

adv.

Adj.

[Gr. a scroll, or spiral body.]

Spiral; winding; moving round.

helical ‎(comparative more helical, superlative most helical)

in the shape of a helix

Finnish: kierteinen
French: hélicoïdal (fr)
Greek: ελικοειδής (el) ‎(elikoeidís), ελικοειδές (el) ‎(elikoeidés), σπειροειδής (el) ‎(speiroeidís)