noun🔗ShareAn outermost-but-one whorl of a flower, composed of petals, when it is not the same in appearance as the outermost whorl (the calyx); it usually comprises the petal, which may be fused."The vibrant red corollas of the poppies stood out against the green field, their petals clearly distinct from the surrounding sepals. "biologyplantnaturepartorganismChat with AIVocabulary GamePractice Reading
