Definition of sepal in English:

sepal

noun

Botany
  • Each of the parts of the calyx of a flower, enclosing the petals and typically green and leaf-like.

    • ‘Roots, stems, leaves, sepals, petals, stamens, stigmas/styles, ovaries, and seeds were collected and frozen in liquid nitrogen.’
    • ‘The formation of organs in the four whorls of a typical eudicotyledonous flower, consisting of sepals, petals, stamens, and carpels, requires many genes for proper organ and tissue development.’
    • ‘The cocoa flower has five free sepals, five free petals, five staminodes, five stamens and an ovary of five united carpels.’
    • ‘Fruits of this species are glabrous achenes, with sepals modified into plumose bristles and are frequently wind-dispersed.’
    • ‘This, in turn was surrounded by several whorls of bracts that many homologize with petals and sepals in flowering plants.’

Origin

Early 19th century: from French sépale, modern Latin sepalum, from Greek skepē covering, influenced by French pétale petal.

Pronunciation:

sepal

/ˈsɛp(ə)l//ˈsiːp(ə)l/