'Cucumber' definitions:

Definition of 'cucumber'

From: WordNet
noun
A melon vine of the genus Cucumis; cultivated from earliest times for its cylindrical green fruit [syn: cucumber, cucumber vine, Cucumis sativus]
noun
Cylindrical green fruit with thin green rind and white flesh eaten as a vegetable; related to melons [syn: cucumber, cuke]

Definition of 'Cucumber'

From: GCIDE