Webster's English Dictionary

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teleost

te.le.ost \'tel-e--.a:st, 'te--le--\ \.tel-e--'a:s-te--*n, .te--le--\ n 
   [deriv. of Gk teleios complete, perfect (fr. telos end) + osteon] bone - 
   more at OSSEOUS : any of a group (Teleostei or Teleostomi) of fishes 
   comprising the fishes  with a bony rather than a cartilaginous skeleton and 
   including all jawed fishes with the exception of the elasmobranchs and 
   sometimes of the ganoids and dipnoans - teleost aj