pelycosaur
noun
pel·y·co·saur ˈpe-li-kə-ˌsȯr 
: any of an order (Pelycosauria) of extinct, primitive, synapsid vertebrates (such as dimetrodon) chiefly of the Permian period often having extreme development of the dorsal vertebral processes and giving rise to the therapsids
Word History
Etymology
ultimately from Greek pelyc-, pelyx bowl + sauros lizard
First Known Use
1884, in the meaning defined above
- conventional wisdoms
- conventionalisatia
- conventionalisation
- conventionalisations
- conventionalise
- conventionalised
- conventionalises
- conventionalising
- conventionalism
- conventionalisms
- conventionalist
- conventionalists
- conventionalities
- conventionality
- conventionalization
- conventionalizations
- conventionalize
- conventionalized
- conventionalizes
- conventionalizing
- conventionally
- conventionary
- conventioneer
- conventioneers
- conventioner