HESPERIDIUM

Etymology

Noun

hesperidium (plural hesperidia)

Any of several kinds of true berries, including citrus fruit such as the lemon and lime, which have pulpy interiors and leathery skins containing aromatic oils.

Source: Wiktionary

Hes`pe*rid"i*um, n. Etym: [NL. So called in allusion to the golden apples of the Hesperides. See Hesperides.] (Bot.)

Definition: A large berry with a thick rind, as a lemon or an orange.

Source: Webster’s Unabridged Dictionary 1913 Edition