2,3-DPG. An organic phosphate in red blood cells that alters the affinity of hemoglobin for oxygen. Blood cells stored in a blood bank lose 2,3-diphosphoglycerate, but once they are infused, the substance is resynthesized or reactivated.
Definition of soft fold. : the fold that results when paper is lapped.
An epicanthal fold is a skin fold of the upper eyelid covering the inner corner of the eye. It is often seen as a normal finding in very young children and is also common in people of Asiatic decent. An epicanthal fold can be an important diagnostic finding in conditions such as Down syndrome.