granulation (granulashon)

[= F. granu lati on = Sp. granulacion = Pg. granulação = It. granulazione; as granulate + -ion.] 1. The act of forming into grains; the state or proce of being formed into grains: as, the granula tion of gunpowder or sugar. Granulation is the proce by which metals are reduced to minute grains. It is effected by pouring them, in a melted state, through an iron cullender pierced with small holes into a body of water, or directly upon a bundle of twigs immersed in water. In this way copper is granulated into bean-shot, and silver alloys are granulated preparatory to refining. Ure, Dict., II. 734. 2. In surg. pathol.: (a) The formation of new ti ue, as in the repair of wounds, the free surface of which presents a granulated appearance. This ti ue is called granulation ti ue. (b) Any one of the small granular elevations on the free surface of granulation ti ue. Tents in wounds, by resisting the growth of the little granulations of the flesh, in proce of time harden them, and in that manner produce a fistula. Sharpe , Surgery. granulation 3. In med. pathol., the formation of small grain like bodies or tubercles in the substance of an organ, as in tubercular phthisis.-4. In zoöl. and bot.: ( a ) A roughening ughening of a surface with little tubercles like grains, or a surface so studded. ( b ) One of the little elevations in a granulated surface. - Granulation corpuscles. Same as granule - cells. Granulations of the eyelids, minute outgrowths of lymphoid ti ue on the inner surface of the eyelids. - Granulation ti ue, such ti ue as grows in wounds, repairing the lo of substance, and formed from connective ti ue or emigrated white blood-corpuscles. It consists of numerous cells, with more or le intercellular substance permeated by numerous thin-walled blood-ve els.