noun
Usage: usually capitalized T
1. or turk's-head cactus ˈ ̷ ̷ˌ ̷ ̷- or turk's cap or turk's-cap cactus ˈ ̷ ̷ˌ ̷ ̷- : a globular West Indian cactus ( Cactus intortus ) deeply furrowed and spiny with a cap of whitish hairs resembling a fez from which the red flowers and fruit arise
2. : a knot that is ornamental as well as practical and is considered to resemble a small turban