Definition of pterodactylian in English:

pterodactylian

Pronunciation /ˌtɛrədakˈtɪlɪən/

adjective

  • Originally Of, relating to, or characteristic of the genus Pterodactylus or the family Pterodactylidae; resembling a pterodactyl.

    Not now in technical use.

Origin

Mid 19th century. From pterodactyl or its etymon scientific Latin Pterodactylus + -ian.