Definition of teleostean in English:

teleostean

adjective

  • Of or relating to the group Teleostei of ray-finned fishes.

noun

  • A fish belonging to this group; = "teleost".

Origin

Mid 19th century; earliest use found in Quarterly Journal of the Geological Society of London. From scientific Latin Teleostei + -an.

Pronunciation

teleostean

/tiːlɪˈɒstɪən/ /tɛlɪˈɒstɪən/