Oc*ci"sion (?), n. [L. occisio, fr. occidere, occisium, to cut down, to
kill; ob (see Ob-) + caedere to cut.] A killing; the act of killing.
[Obs.] Sir M. Hale.
Oc*clude" (?), v. t. [L. occludere, occlusum; ob (see Ob-) + claudere
to shut.] 1. To shut up; to close. Sir T. Browne.
2. (Chem.) To take in and retain; to absorb; -- said especially with
respect to gases; as iron, platinum, and palladium occlude large
volumes of hydrogen.
Oc*clud"ent (?), a. [L. occludens, p. pr. of occludere.] Serving to
close; shutting up. -- n. That which closes or shuts up. Sterne.
Oc*cluse" (?), a. [L. occlusus, p. p. See Occlude.] Shut; closed.
[Obs.] Holder.
Oc*clu"sion (?), n. [See Occlude.] 1. The act of occluding, or the
state of being occluded.
Constriction and occlusion of the orifice.
Howell.
2. (Med.) The transient approximation of the edges of a natural
opening; imperforation. 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.
Oc*crus"tate (?), v. t. [See Ob- , and Crustated.] To incrust; to
harden. [Obs.] Dr. H. More.
Oc*cult" (?), a. [L. occultus, p. p. of occulere to cover up, hide; ob
(see Ob- ) + a root prob.akin to E. hell: cf. F. occulte.] Hidden from
the eye or the understanding; inviable; secret; concealed; unknown.
It is of an occult kind, and is so insensible in its advances as to
escape observation.