spinosaurEtymologyFrom the taxonomic name Spinosaurus. By surface analysis, spino- + -saur.spinosaur means any theropod dinosaur of the genus †Spinosaurus. Lexicurio rates it Rare gem — a strength score of 79 out of 100.nounAny theropod dinosaur of the genus †Spinosaurus.“Since then, all that has been discovered are some specimens of related smaller spinosaurs, as well as some isolated bones of Spinosaurus itself.”