| 释义 | 
		Definition of rice grain in English: rice grainnoun ˈrʌɪs ˌɡreɪn 1An individual seed of rice, especially after removal of the husk. Also (as a mass noun): rice as a food grain. 2Astronomy. A small, luminous, and short-lived patch on the surface of the sun; = "facula". Also called willow leaf. Now rare. 
 Origin   Mid 18th century; earliest use found in The Annual Register. From rice + grain.    Definition of rice grain in US English: rice grainnounˈrʌɪs ˌɡreɪn 1An individual seed of rice, especially after removal of the husk. Also (as a mass noun): rice as a food grain. 2Astronomy. A small, luminous, and short-lived patch on the surface of the sun; = "facula". Also called willow leaf. Now rare. 
 Origin   Mid 18th century; earliest use found in The Annual Register. From rice + grain.     |