单词 | pearl grass |
释义 | pearl grass/ˈpəːl ɡrɑːs/ /ˈpəːl ɡras/(also pirl grass, purl 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. OriginMid 17th century; earliest use found in Thomas Johnson (d. 1644), apothecary and soldier. From pearl + grass. |
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