'Hesperidium' definitions:

Definition of 'Hesperidium'

From: GCIDE

Hesperidium \Hes`pe*rid"i*um\, n. [NL. So called in allusion to the golden apples of the Hesperides. See Hesperides.] (Bot.) A large berry with a thick rind, as a lemon or an orange. [1913 Webster]