Definition of Turk's-cap lily in US English:

Turk's-cap lily

noun

  • A lily with orange flowers that resemble turbans due to the almost completely reflexed petals.

    Lilium superbum, family Liliaceae

    • ‘This tuberous perennial is not a true lily, despite its resemblance to the Turk's-cap lily.’
    • ‘Because of its unique flower shape and sharply reflexed petals it is also known as the Turk's-cap lily.’