any of an order (Pterosauria) of flying reptiles of the Mesozoic Era, having wings of skin stretched along the body between the hind limbs and the very long fourth digits of each forelimb
Origin of pterosaurfrom Modern Latin Pterosaurus: see ptero- and -saur
Any of various extinct flying reptiles of the group Pterosauria, including the pterodactyls, of the Mesozoic Era, characterized by wings consisting of a membrane of skin extending from the side of the body to the very long fourth digit of the forelimb.
Origin of pterosaurFrom New Latin Pterosauria order name Greek pteron feather, wing ; see -pter . Greek sauros lizard
ptero- +"Ž -saur