sigmoid

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈsɪɡmɔɪd/US:USA pronunciation: respellingUSA pronunciation: respelling(sig′moid)


WordReference Random House Unabridged Dictionary of American English © 2025
sig•moid  (sig′moid),USA pronunciation adj. 
  1. shaped like the letter C.
  2. shaped like the letter S.
  3. Anatomyof, pertaining to, or situated near the sigmoid flexure of the large intestine.
Also, sig•moi′dal. 
  • Greek sigmoeidé̄s shaped like a sigma. See sigma, -oid
  • 1660–70
sig•moi′dal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
sigmoid / ˈsɪɡmɔɪd/
also: sigmoidal
  1. shaped like the letter S
  2. of or relating to the sigmoid colon of the large intestine
Etymology: 17th Century: from Greek sigmoeidēs sigma-shaped
'sigmoid' also found in these entries (note: many are not synonyms or translations):
descending colon - rectum - sigmoid flexure - sigmoidoscope

Forum discussions with the word(s) "sigmoid" in the title:


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