maracas Syllabification: (ma·rac·as)Pronunciation: /məˈräkəz/Definition of maracas noun a pair of hollow clublike gourd or gourd-shaped containers filled with beans, pebbles, or similar objects, shaken as a percussion instrument. Origin: early 17th century: from Portuguese maracá, from Tupimaracas in other Oxford dictionaries Definition of maracas in the British & World English dictionary