English dictionary
redtop
/'r/E/d,t/A/p/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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A kind of grass (<i>Agrostis vulgaris</i>) highly valued in the United States for pasturage and hay for cattle; -- called also <i>English grass</i>, and in some localities <i>herd's grass</i>. See <i>Illustration</i> in Appendix. The tall redtop is <i>Triodia seslerioides</i>.
Source: webster1913