any fresh-water fish of the genus perca and of several other allied genera of the family percidae, as the common american or yellow perch (perca flavescens, / americana), and the european perch (p. fluviatilis).-any one of numerous species of spiny-finned fishes belonging to the percidae, serranidae, and related families, and resembling, more or less, the true perches.-a pole; a long staff; a rod; esp., a pole or other support for fowls to roost on or to rest on; a roost; figuratively, any elevated resting place or seat.-a measure of length containing five and a half yards; a rod, or pole.-in land or square measure: a square rod; the 160th part of an acre.-in solid measure: a mass 16/ feet long, 1 foot in height, and 1/ feet in breadth, or 24/ cubic feet (in local use, from 22 to 25 cubic feet); -- used in measuring stonework.-a pole connecting the fore gear and hind gear of a spring carriage; a reach.-to alight or settle, as a bird; to sit or roost.-to place or to set on, or as on, a perch.-to occupy as a perch.