of or shaped like a helix; spiral
WordReference Random House Learner's Dictionary of American English © 2026
hel•i•cal /ˈhɛlɪkəl, ˈhilɪ-/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- Mathematicsshaped like a helix;
spiral.
hel•i•cal
(hel′i kəl, hē′li-),USA pronunciation adj.
hel′i•cal•ly, adv.
- Mathematicspertaining to or having the form of a helix;
spiral.
- helic- + -al1 1605–15
Collins Concise English Dictionary © HarperCollins Publishers::
'helical' also found in these entries (note: many are not synonyms or translations):
Watson
- alpha helix
- auger
- box spring
- corkscrew
- double helix
- double-helical gear
- drive screw
- face gear
- flute
- helic-
- helical gear
- helical rack
- helico-
- herringbone gear
- left-handed
- myxovirus
- reamer
- retrovirus
- rifled slug
- right-handed
- screw
- screw auger
- screw propeller
- screw thread
- slip
- spin
- spiral
- spiral gear
- spiry
- split ring
- spring balance
- superhelix
- thread
- tokamak
- twist drill
- worm