any shrub or herbaceous plant of the genus Acanthus, native to the Mediterranean region but widely cultivated as ornamental plants, having large spiny leaves and spikes of white or purplish flowers: family Acanthaceae
See also bear's-breech
2.
a carved ornament based on the leaves of the acanthus plant, esp as used on the capital of a Corinthian column
Word origin
C17: New Latin, from Greek akanthos, from akantha thorn, spine
acanthus in American English
(əˈkænθəs)
nounWord forms: pluralaˈcanthuses or aˈcanˌthi (əˈkænˌθaɪ; əˈkænˌθi)
1.
any of a genus (Acanthus) of thistlelike plants of the acanthus family with lobed, often spiny leaves andlong spikes of white or colored flowers, found in the Mediterranean region
2. Architecture
a motif or conventional representation of the leaf of this plant, used esp. on the capitals of Corinthian columns
adjective
3.
designating a family (Acanthaceae, order Scrophulariales) of dicotyledonous plants, includingbear's-breech