rat
any of various long-tailed rodents similar to but larger than a mouse
Type of:
rodent; gnawer
Types:
pocket rat
brown rat; Norway rat; Rattus norvegicus
black rat; roof rat; Rattus rattus
bandicoot rat; mole rat
jerboa rat
rice rat; Oryzomys palustris
WordNet Lexical Database
v3.0, © 2006 Princeton University