petromyzontoid
/ˌpɛtrə(ʊ)mʌɪˈzɒntɔɪd/Zoology rare
noun
A fish of the family Petromyzontidae or superfamily Petromyzontoidea; a lamprey.
Origin
Mid 19th century; earliest use found in Theodore Gill (1837–1914). From scientific Latin Petromyzont- + -oid, after Petromyzontidae. In later use after scientific Latin Petromyzontoidea, superfamily name.