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O — Occamy to Ocean (Part 3 of 6)

Occipito-
(Oc*cip"i*to-) [See Occiput.] A combining form denoting relation to, or situation near, the occiput; as, occipito-axial; occipito- mastoid.

Occipitoaxial
(Oc*cip`i*to*ax"i*al) a. (Anat.) Of or pertaining to the occipital bone and second vertebra, or axis.

Occiput
(Oc"ci*put) n.; pl. L. Occipita E. Occiputs. [L., fr. ob (see Ob-) + caput head. See Chief.]

1. (Anat.) The back, or posterior, part of the head or skull; the region of the occipital bone.

2. (Zoöl.) A plate which forms the back part of the head of insects.

Occision
(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.

Occlude
(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.

Occludent
(Oc*clud"ent) a. [L. occludens, p. pr. of occludere.] Serving to close; shutting up. — n. That which closes or shuts up. Sterne.

Occluse
(Oc*cluse") a. [L. occlusus, p. p. See Occlude.] Shut; closed. [Obs.] Holder.

Occlusion
(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.

Occrustate
(Oc*crus"tate) v. t. [See Ob- , and Crustated.] To incrust; to harden. [Obs.] Dr. H. More.

Occult
(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.
I. Taylor.

Occult line (Geom.), a line drawn as a part of the construction of a figure or problem, but not to appear in the finished plan. — Occult qualities, those qualities whose effects only were observed, but the nature and relations of whose productive agencies were undetermined; — so called by the schoolmen. — Occult sciences, those sciences of the Middle Ages which related to the supposed action or influence of occult qualities, or supernatural powers, as alchemy, magic, necromancy, and astrology.

Occult
(Oc*cult"), v. t. To eclipse; to hide from sight.

Occultation
(Oc`cul*ta"tion) n. [L. occultatio a hiding, fr. occultare, v. intens. of occulere: cf.F. occultation. See Occult.]