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Medical Term:


Pronunciation: si′nŭ-soyd


  1. Resembling a sinus.
  2. Sinusoidal capillary; a thin-walled terminal blood vessel having an irregular and larger caliber than an ordinary capillary; its endothelial cells have large gaps and the basal lamina is either discontinuous or absent.

Synonym(s): vas sinusoideumTA, sinusoidal capillary

[sinus + G. eidos, resemblance]