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.
yielding readily to touch or pressure; easily penetrated, divided, or changed in shape; not hard or stiff: a soft pillow. relatively deficient in hardness, as metal or wood. smooth and agreeable to the touch; not rough or coarse: a soft fabric; soft skin.