sundewPronunciation: /ˈsʌndjuː/Definition of sundew noun a small carnivorous plant of boggy places, with rosettes of leaves that bear sticky glandular hairs for trapping insects, which are then digested. Genus Drosera, family Droseraceae: many species, including the common European D. rotundifolia sundew in other Oxford dictionaries Definition of sundew in the US English dictionary