Glossary Database

Select a Letter to view the associated terms.
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 Glossary Term: 

Definition:

 Jerboas  a small, nocturnal, social rodent of the family Dipodidae found in Old World deserts, having enlarged hind limbs that are modified for leaping (Morris 1992).
 Joint  A fracture in a rock along which no appreciable displacement has occurred.
 Jurassic  The time period 190 to 135 million years ago, it is the second period of the Mesozoic era.