| grey | See Gray (the correct orthography). Source: Websters Dictionary (01 Mar 1998) |
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| grey crescent | <biology> A region near the equator of the surface in the fertilized egg of various amphibia, often of greyish colour, that appears to contain special morphogenetic properties. (18 Nov 1997) |
| grey matter | <anatomy> Gray matter, the thinking brain, appears gray because it is composed of numerous nerve cells and blood vessels. The outer layer of the cerebrum - the cerebral cortex and areas deep within the brain - the basal ganglia, are made up of grey matter. See: white matter. (16 Dec 1997) |
| Grey Turner's sign | <clinical sign> Local areas of discoloration about the umbilicus and in the region of the loins, in acute haemorrhagic pancreatitis and other causes of retroperitoneal haemorrhage. (05 Mar 2000) |
| greylag | <zoology> See Graylag. Source: Websters Dictionary (01 Mar 1998) |
| Turner, George Grey | <person> English surgeon, 1877-1951. See: Grey Turner's sign. (05 Mar 2000) |
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