helical

Adjective

Synonyms: coiling spiral spiraling volute voluted whorled turbinate

WordNet 3.0

Adjective (1)

in the shape of a coilSynonyms: coiling spiral spiraling volute voluted whorled turbinate

Webster's Dictionary (GCIDE)

Helical \Hel"i*cal\, a. [From Helix.] Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring. -- Hel"i*cal*ly, adv. [1913 Webster]