Definition of pearl grass in English:

pearl grass

(also purl grass, pirl grass)

noun

  • 1The large quaking grass, Briza maxima, especially a variety with albino spikelets, grown for ornament.

  • 2The onion couch, Arrhenatherum elatius var. bulbosum. Also (occasionally): the common couch grass, Elymus repens.

Origin

Mid 17th century; earliest use found in Thomas Johnson (d. 1644), apothecary and soldier. From pearl + grass.

Pronunciation

pearl grass

/ˈpəːl ɡrɑːs//ˈpəːl ɡras/