Definition of onion grass in English:

onion grass

noun

  • 1US= "melic".

  • 2Australian. Any of several crocus-like plants of the genus Romulea (family Iridaceae) naturalized in Australia; especially R. rosea.

Origin

Mid 19th century. From onion + grass.

Pronunciation

onion grass

/ˈʌnjən ˌɡrɑːs//ˈʌnjən ˌɡras/