OCCLUSION n.
n. Dunglison. Occlusion of gases (Chem. & Physics), the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal; thus, palladium absorbs, or occludes, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed.
OPERA n.
The house where operas are exhibited. Opéra bouffe Etym: [F. opéra opera + bouffe comic, It.buffo], Opera buffa Etym: [It.], light, farcical, burlesque opera. -- Opera box, a partially inclosed portion of the auditorium of an opera house for the use of a small private party. -- Opéra comique Etym: [F.], comic or humo…