petal

Từ điển Oxford Advanced Learner 8th

petal [petal petals] BrE [ˈpetl] NAmE [ˈpetl] noun
a delicate coloured part of a flower. The head of a flower is usually made up of several petals around a central part.

Word Origin:
early 18th cent.: from modern Latin petalum (in late Latin ‘metal plate’), from Greek petalon ‘leaf’, neuter (used as a noun) of petalos ‘outspread’.