teasel /ˈtiːzəl/noun 3verb 1forms 5 noun3 •Any of several plants of the genus Dipsacus. •The dried fruiting head of the fuller's teasel, Dipsacus sativa, used for teasing or carding cloth. •Any contrivance intended as a substitute for teasels in dressing cloth. verb1 •(no longer used) To raise the nap on cloth; to tease; to card. formsteaseled · teaselled · teaseling · teaselling · teasels