GNU Collaborative International Dictionary of English

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1.       
   Jumping, p. a. & vb. n. of Jump, to leap.
   1913 Webster
   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 (Zool.), a South African rodent (Pedetes Caffer), allied to the jerboa. -- Jumping louse (Zool.), any of the numerous species of plant lice belonging to the family Psyllidæ, several of which are injurious to fruit trees. -- Jumping mouse (Zool.), 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 (Zool.), gray mullet. -- Jumping shrew (Zool.), any African insectivore of the genus Macroscelides. They are allied to the shrews, but have large hind legs adapted for jumping. -- Jumping spider (Zool.), spider of the genus Salticus and other related genera; one of the Saltigradæ; -- so called because it leaps upon its prey.
   1913 Webster