obturator obturation • obturatory · · · Info · Definitions · Characters · · obturator · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a prosthesis used to close an opening (as to close an opening of the hard palate in cases of cleft palate). · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075