definition of pika
A pika (/ËpaÉªkÉ/ PY-kÉ; archaically spelled pica) is a small mammal, with short limbs, very round body, rounded ears, and no external tail. The name pika is used for any member of the Ochotonidae, a family within the order of lagomorphs, which also includes the Leporidae (rabbits and hares).