Definition of echiuroid in English:

echiuroid

noun & adjective

Zoology

See Echiura

‘The oxygen consumption of the echiuroid BoneUia viridis has been investigated by means of a continuous-flow polarographic respirometer.’
‘Echiuroids also move by extending the proboscis, which takes hold of some fixed object, and, then contracting, draws the body forwards.’

Pronunciation

echiuroid

/ˈɛkɪjʊ(ə)ˌrɔɪd/