bleeding

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Related to occult bleeding: hematochezia

bleeding

[′blēd·iŋ]
(chemical engineering)
The undesirable movement of certain components of a plastic material to the surface of a finished article. Also known as migration.
(engineering)
Natural separation of a liquid from a liquid-solid or semisolid mixture; for example, separation of oil from a stored lubricating grease, or water from freshly poured concrete. Also known as bleedout.
(materials)
The outward penetration of a coloring agent from a substrate through the surface coat of paint.
The movement of grout through a pavement from below a road surfacing material to the outer surface.
(textiles)
Referring to a fabric in which the dye is not fast and therefore comes out when the fabric is wet.

bleeding

1. The upward penetration of a coloring pigment from a substrate through a topcoat of paint.
2. The oozing of grout from below a road-surfacing material to the surface in hot weather.
3. Exudation of one or more components of a sealant, with possible absorption by adjacent porous surfaces.
4. The autogenous flow of mixing water within, or its emergence from, newly placed concrete or mortar; caused by the settlement of the solid materials within the mass or by drainage of mixing water; also called water gain.
5. The diffusion of coloring matter through a coating from the substrate, or the discoloration that arises from such a process.
References in periodicals archive ?
Several research groups have reported occult bleeding in marathon runners, using pre-and post-race stool guaiac testing with the prevalence of blood in post-race specimens ranging from 8 to 30%(7).
Prior to SpHb, measuring hemoglobin was an invasive, time-consuming, and intermittent process that often resulted in delayed detection and intervention of occult bleeding.
Reimbursement has been approved as an outpatient procedure for broad indications including, Crohn's disease, celiac disease, lymphoma, polyposis and occult bleeding.