(noun.) (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green.
手打:卡尔
双语例句
Her little hands were clasped, and enclosed by Sir James's as a bud is enfolded by a liberal calyx. 乔治·艾略特.米德尔马契.