heather UK /ˈhɛðə/US /ˈhɛðɚ/noun 6adjective 1forms 1 noun6 •a plant whose short sharp leaves stay green all year and whose tiny flowers are pink or purpleThe cutting sides were gay with heather in bloom, and masses of dainty Scots bluebells, while patches of clear sky overhead were bringing life and colour to the sea. — 1947 •A plant in the family Ericaceae. •Various species of the genus Erica. •Various species of the genus Cassiope. •A purple colour with a tint of pink and blue. •The use of interwoven yarns of mixed colours to produce flecks. adjective1 •Of a purple colour with a tint of pink and blue. formsheathers