Word Study
Hesperidium
CIDE DICTIONARY
Hesperidium, n. [NL. So called in allusion to the golden apples of the Hesperides. See Hesperides.].
A large berry with a thick rind, as a lemon or an orange. [1913 Webster]
OXFORD DICTIONARY
Hesperidium, n. (pl. hesperidia) a fruit with sectioned pulp inside a separable rind, e.g. an orange or grapefruit.
Etymology
Gk Hesperides daughters of Hesperus, nymphs in Greek mythology who guarded a tree of golden apples
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