ˈ ̷ ̷ˌ ̷ ̷ noun
1. : any of several grasses that have creeping or decumbent stems which root freely at the nodes and that are often pests in turf or cultivated lands: as
a. : any of several grasses of the genus Digitaria ; especially : large crabgrass
b. : yard grass
c. : egyptian grass
2. : knotgrass 1
3. : a glasswort ( Salicornia europaea ) supposed to be a food for crabs