acanthaceous

[ ak-uh n-they-shuh s ]
/ ˌæk ənˈθeɪ ʃəs /

adjective

having prickly growths.
belonging to the plant family Acanthaceae.

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Origin of acanthaceous

1745–55; < New Latin Acanthace(ae) (see acanthus, -aceae) + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for acanthaceous

acanthaceous
/ (ˌækənˈθeɪʃəs) /

adjective

of or relating to the Acanthaceae, a mainly tropical and subtropical family of flowering plants that includes the acanthus
having spiny or prickly outgrowths
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012