'Epizoan' definitions:

Definition of 'epizoan'

(from WordNet)
adjective
Of or relating to epizoa [syn: epizoan, ectozoan]
noun
Any external parasitic organism (as fleas) [syn: ectoparasite, ectozoan, ectozoon, epizoan, epizoon]

Definition of 'Epizoan'

From: GCIDE
  • Epizoan \Ep`i*zo"an\, n. (Zo["o]l.) An epizo["o]n. [1913 Webster]