billion-dollar grass en · NOUN
Etymology
Probably so-called because of the adverse impact of Echinochloa weeds on yields rice and other crops.
Meanings
- (countable, uncountable) Any member of the genus Echinochloa of barnyard grass, widely considered harmful weeds.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| billion-dollar grasses | Number=Plur | lexicographic |