Source : Webster's Revised Unabridged Dictionary (1913)

Discina \Dis*ci"na\, n. [NL., fr. L. discus disk, Gr. ?.]
   (Zo["o]l.)
   A genus of Branchiopoda, having a disklike shell, attached by
   one valve, which is perforated by the peduncle.

Source : WordNet®

discina
     n : any fungus of the genus Discina