[1] : The Collaborative International Dictionary of English v.0.48

colocynth \col"ocynth\, n. l. colocynthis, gr. ?. cf.
   coloquintida. med.
   the light spongy pulp of the fruit of the bitter cucumber
   citrullus colocynthis, or cucumis colocynthis, an
   asiatic plant allied to the watermelon; coloquintida. it
   comes in white balls, is intensely bitter, and a powerful
   cathartic. called also bitter apple, bitter cucumber,
   bitter gourd.
   1913 webster
see also:
coloquintida citrullus colocynthis cucumis colocynthis bitter apple bitter cucumber bitter gourd 

Colocynth >> C Words
Colocynth, definition of term: Colocynth
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