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azurophilic granuleA large, coarse, blue-purple membrane-bound organelle in progranulocytes, myelocytes and neutrophils, which acts as a reservoir for digestive and hydrolytic enzymes before delivery to a phagosome.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
A small red or reddish-purple granule that easily takes a stain with azure dyes. Found in lymphocytes and monocytes, it is inconstant in number, being present in about 30% of the cells.
See also: granule
Medical Dictionary, © 2009 Farlex and Partners