Arum arum • arum family · · · Info · Definitions · Synonyms · Characters · · Arum · · Text Latin · · Script 4 · · Length 2 · · Syllables Definitions · · · (noun) starch resembling sago that is obtained from cuckoopint root. Synonyms: arum. · · Noun Definition 1 (noun) any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe. Synonyms: arum, aroid. · · Noun Definition 2 Synonyms · · · aroid · · Synonym 1 Characters · · A latin capital letter a U+0041 m latin small letter m U+006D r latin small letter r U+0072 u latin small letter u U+0075