\Jump"ing\, p. a. & vb. n.
of {Jump}, to leap.

{Jumping bean}, a seed of a Mexican {Euphorbia}, containing
   the larva of a moth ({Carpocapsa saltitans}). The larva by
   its sudden movements causes the seed to roll to roll and
   jump about.

{Jumping deer} (Zo["o]l.), a South African rodent ({Pedetes
   Caffer}), allied to the jerboa.

{Jumping jack}, a toy figure of a man, jointed and made to
   jump or dance by means of strings.

{Jumping louse} (Zo["o]l.), any of the numerous species of
   plant lice belonging to the family {Psyllid[ae]}, several
   of which are injurious to fruit trees.

{Jumping mouse} (Zo["o]l.), North American mouse ({Zapus
   Hudsonius}), having a long tail and large hind legs. It is
   noted for its jumping powers. Called also {kangaroo
   mouse}.

{Jumping mullet} (Zo["o]l.), gray mullet.

{Jumping shrew} (Zo["o]l.), any African insectivore of the
   genus {Macroscelides}. They are allied to the shrews, but
   have large hind legs adapted for jumping.

{Jumping spider} (Zo["o]l.), spider of the genus {Salticus}
   and other related genera; one of the Saltigrad[ae]; -- so
   called because it leaps upon its prey.