ˈdʒʌmbəu n. & adj. colloq. --n. (pl. -os) 1 a
large animal (esp. an elephant),
person, or
thing. 2 (in full jumbo jet) a large
airliner with capacity for several hundred passengers. °Usu.
applied specifically to
the Boeing 747. --adj. 1
very large of
its kind. 2
extra large (jumbo packet). [19th c. (orig. of a person): orig. unkn.: popularized as the
name of a
zoo elephant sold in 1882]