grass-of-Parnassus n 1: any of various usually evergreen bog plants of the genus Parnassia having broad smooth basal leaves and a single pale flower resembling a buttercup [syn: {parnassia}, {grass-of-Parnassus}]
grass-of-Parnassus \grass-of-Parnassus\ n. Any of various usually evergreen bog plants of the genus {Parnassia} having broad smooth basal leaves and a single pale buttercuplike flower. Syn: parnassia, grass of Parnassus. [WordNet 1.5]