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1. a seed, especially of a cereal plant.
grThe grain is obsolete as a unit in medicine, pharmacy, and nursing. Avoid the abbreviation gr, which is subject to frequent misinterpretation.
Abbreviation for grain3.
NR3C1A gene on chromosome 5q31.3 that encodes a glucocorticoid receptor, which acts as either a transcription factor that binds to glucocorticoid response elements in the promoters of glucocorticoid responsive genes to activate their transcription, or as a regulator of other transcription factors.
NR3C1 mutation are associated with generalised glucocorticoid resistance.
Abbreviation for grain.
Abbreviation for grain (abbrev. disallowed by order of JCAHO).