'jumbo jet' definitions:

Definition of 'jumbo jet'

(from WordNet)
noun
A very large jet plane [syn: jumbojet, jumbo jet]

Definition of 'jumbo jet'

From: GCIDE
  • jumbo jet \jum"bo jet`\ (j[u^]m"b[-o] j[e^]t`), n. A large commercial jet airplane, usually having a passenger capacity of over 300 in normal use; also called {widebody airplane}. [PJC]