gastropod gastropneumonic • Gastropoda · · · Info · Definitions · Synonyms · Characters · · gastropod · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes. Synonyms: univalve. · · Noun Definition 1 Synonyms · · · univalve · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 g latin small letter g U+0067 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074