Noun
spiral [pl. spirals] , {mechanical engineering}
helix [pl. helixes / helices] , {Eng.}
screw [pl. screws] , {Eng.}
Verb
...
screw {instruments & machines}, {Eng.}
related Translations
screw (n.) , [pl. screws]
to unscrew (v.) , [ unscrewed ; unscrewed ]