[1] : The Collaborative International Dictionary of English v.0.48

perch \perch\ p~erch, n. written also pearch. oe.
   perche, f. perche, l. perca, fr. gr. pe`rkh; cf. perkno`s
   dark-colored, skr. p.r,cni spotted, speckled, and e.
   freckle. zool.
   1. 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 syn.
      perca americana, and the european perch perca
      fluviatilis.
      1913 webster

   2. 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.
      1913 webster

   black perch.
      a the black bass.
      b the flasher.
      c the sea bass.

   blue perch, the cunner.

   gray perch, the fresh-water drum.

   red perch, the rosefish.

   red-bellied perch, the long-eared pondfish.

   perch pest, a small crustacean, parasitic in the mouth of
      the perch.

   silver perch, the yellowtail.

   stone perch, or striped perch, the pope.

   white perch, the roccus americanus, or morone
      americanus, a small silvery serranoid market fish of the
      atlantic coast.
      1913 webster
see also:
pearch perca percidae perca flavescens perca americana perca fluviatilis 
serranidae black perch blue perch gray perch red perch 
red-bellied perch perch pest silver perch stone perch striped perch 
white perch roccus americanus morone americanus 

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