corolla
noun/kəˈrɒlə/
/kəˈrəʊlə/, /kəˈrɑːlə/
(biology)- the ring of petals around the central part of a flowerWord Originlate 17th cent. (in the sense ‘little crown’): from Latin, diminutive of corona ‘wreath, crown, chaplet’.
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corolla