EchiuraPronunciation: /ˌɛkɪˈjʊ(ə)rə/Definition of Echiura noun Zoology a small phylum of worm-like marine invertebrates that comprises the spoonworms. Derivatives echiuran noun & adjective echiuroidPronunciation: /ˈɛkɪjʊ(ə)ˌrɔɪd/ noun & adjective Origin:modern Latin (earlier Echiuroidea), from Greek ekhis 'viper' + oura 'tail'Echiura in other Oxford dictionaries Definition of Echiura in the US English dictionary
