blue grass

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of various grasses of the genus Poa
• Syn:
bluegrass
• Hypernyms:
grass
• Hyponyms:
Kentucky bluegrass, Kentucky blue, Kentucy blue grass, June grass, Poa pratensis
• Member Holonyms:
Poa, genus Poa