desiccant desi • desiccate · · · Info · Definitions · Synonyms · Characters · · desiccant · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture). Synonyms: drying agent, drier, siccative. · · Noun Definition 1 Synonyms · · · drying agent · · Synonym 1 drier · · Synonym 2 siccative · · Synonym 3 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074