Home › Words › E › eurypterideurypterid/jʊəˈɹɪp.tə.ɹɪd/eurypterid means A large, prehistoric, carnivorous arthropod, of the class †Eurypterida, thought to be one of the first animals to venture onto land.eurypterid is pronounced /jʊəˈɹɪp.tə.ɹɪd/.EtymologyBorrowed from translingual Eurypterida. By surface analysis, eury- + -pter + -id.nounA large, prehistoric, carnivorous arthropod, of the class †Eurypterida, thought to be one of the first animals to venture onto land.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.waeringopterid 67% match — Any eurypterid sea scorpion of the family †Waeringopteroidea. vs eurypterid →pterygotioid 67% match — Any member of the Pterygotioidea superfamily of extinct eurypterids vs eurypterid →eophrynid 64% match — Any extinct arachnid in the family Eophrynidae. vs eurypterid →eryonoid 63% match — Any extinct decapod crustacean of the family Eryonidae vs eurypterid →hughmilleriid 63% match — Any eurypterid of the family †Hughmilleriidae. vs eurypterid →stylonurine 63% match — Any eurypterid sea scorpion of the suborder †Stylonurina. vs eurypterid →endognathary 63% match — An arm in eurypterids used to handle food vs eurypterid →ectognath 63% match — An appendage used for eating in Eurypterida vs eurypterid →