rush-grass rushg·rass uncommon noun 1. grass having wiry stems and sheathed panicles Synonymsrush grass 2. grass having wiry stems and sheathed panicles Synonymsrush grassrush-grass Related words Word family rush-grass Broader terms grass Parts Sporobolus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
