dilator dilatometry • dilatorily · · · Info · Definitions · Synonyms · Characters · · dilator · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a muscle or nerve that dilates or widens a body part. · · Noun Definition 1 (noun) a drug that causes dilation. · · Noun Definition 2 (noun) a surgical instrument that is used to dilate or distend an opening or an organ. Synonyms: dilater. · · Noun Definition 3 Synonyms · · · dilater · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074