'Shaddock' definitions:

Definition of 'shaddock'

(from WordNet)
noun
Southeastern Asian tree producing large fruits resembling grapefruits [syn: pomelo, pomelo tree, pummelo, shaddock, Citrus maxima, Citrus grandis, Citrus decumana]
noun
Large pear-shaped fruit similar to grapefruit but with coarse dry pulp [syn: pomelo, shaddock]

Definition of 'Shaddock'

From: GCIDE
  • Shaddock \Shad"dock\, n. [Said to be so called from a Captain Shaddock, who first brought this fruit from the East Indies.] (Bot.) A tree (Citrus decumana) and its fruit, which is a large species of orange; -- called also forbidden fruit, and pompelmous. [1913 Webster]