plural of wing in ground effect

Alternative form of soften the ground

(medicine) The expulsion of vomit with the appearance of ground coffee, as a result of the iron in red blood cells being oxidized by gastric acid. It is a classic sign of upper gastrointestinal bleeding.

(medicine) Synonym of coffee ground vomiting

Any of various members of the genus Spermophilus that are native to the arctic, including (but not limited to) Spermophilus parryii and Spermophilus undulatus.

plural of arctic ground squirrel

Dealing with a matter with which one is familiar or expert.

The South American ground dove Columbina talpacoti.

plural of ruddy ground dove

Spermophilus beccheyi