OCCLUSION

n. O2k-klu'zhu3n. Lat., occlusio (from occludere, to close). Fr., o. Ger., Verklebung, Verschlu , O. 1. The act of stopping up or the state of being stopped up (said of a pa age or opening). 2. The pa age of a gas (especially of hydrogen) into the pores of a metal in very large quantities so as to form a mechanical combination. [B; D; a, 48.] [s. 125]