instillator instillation • instillatory · · · Info · Definitions · Characters · · instillator · · Text Latin · · Script 11 · · Length Definitions · · · (noun) medical apparatus that puts a liquid into a cavity drop by drop. · · Noun Definition 1 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074