say it: HEL-i-kuhl
helical is an adjective meaning "in the shape of a coil". It is pronounced /ˈhɛlɪkəl/ — HEL-i-kuhl. It carries one recorded sense.
Definitions, synonyms and semantic relations for helical come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.