petromyzon petromastoid • petromyzon marinus · · · Info · Definitions · Characters · · petromyzon · · Text Latin · · Script 10 · · Length 4 · · Syllables Definitions · · · (noun) typical lampreys. Synonyms: Petromyzon, genus Petromyzon. · · Noun Definition 1 Characters · · e latin small letter e U+0065 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079 z latin small letter z U+007A