'rockcress' definitions:
Definition of 'rockcress'
(from WordNet)
noun
Noxious cress with yellow flowers; sometimes placed in genus Sisymbrium [syn: yellow rocket, rockcress, rocket cress, Barbarea vulgaris, Sisymbrium barbarea]
noun
Any of several rock-loving cresses of the genus Arabis [syn: rock cress, rockcress]