Word Origin and History for semi-Expand before vowels sem-, word-forming element meaning half, part, partly; partial, imperfect; twice, from Latin semi-half, from PIE *semi-half (cf. Sanskrit sami half, Greek hemi-half, Old English sam-, Gothic sami-half).
Well-known rodents include mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, hamsters, gerbils and capybaras. Other animals such as rabbits, hares, and pikas, whose incisors also grow continually, were once included with them, but are now considered to be in a separate order, the Lagomorpha.
Report Abuse. You would have to pick out a specific species in order to classify the genus and species of a bat. For instance, a big brown bat is genus species Eptesicus fuscus. The order for bats is Chiroptera.That means that it is not in the rodent family because rodents are classified under the order rodentia.est Answer: There are about 1100 species of bats (order Chiroptera), and they are in no way related to rodents other than both being placental mammals. Rodents are also not a family, but a whole order that includes about 32 families.