Definition of oxystome in US English:

oxystome

noun

  • An oxystomatous crab.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From oxy- + -stome, after French oxystome or scientific Latin Oxystoma, family name.

Pronunciation

oxystome

/ˈɒksɪstəʊm/