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say it: sig-MOY-duhl
sigmoidal is an adjective meaning "of or relating to the sigmoid flexure in the large intestine". It carries one recorded sense.
of or relating to the sigmoid flexure in the large intestine
Definitions, synonyms and semantic relations for sigmoidal come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. .