Adjacent Words

Occlusion definitions

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Webster's 1828 Dictionary

OCCLU'SION, n. s as z. [L. occlusio.] a shutting up; a closing.
[This is an elegant word, though little used.]

WordNet (r) 3.0 (2005)

n
1: closure or blockage (as of a blood vessel)
2: (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft [syn: occluded front, occlusion]
3: (dentistry) the normal spatial relation of the teeth when the jaws are closed
4: an obstruction in a pipe or tube; "we had to call a plumber to clear out the blockage in the drainpipe" [syn: blockage, block, closure, occlusion, stop, stoppage]
5: the act of blocking [syn: blockage, closure, occlusion]

Merriam Webster's

noun Etymology: Latin occludere Date: circa 1645 1. the act of occluding ; the state of being occluded: as a. the complete obstruction of the breath passage in the articulation of a speech sound b. the bringing of the opposing surfaces of the teeth of the two jaws into contact; also the relation between the surfaces when in contact c. the inclusion or sorption of gas trapped during solidification of a material 2. the front formed by a cold front overtaking a warm front and lifting the warm air above the earth's surface

Oxford Reference Dictionary

n. 1 the act or process of occluding. 2 Meteorol. a phenomenon in which the cold front of a depression overtakes the warm front, causing upward displacement of warm air between them. 3 Dentistry the position of the teeth when the jaws are closed. 4 the blockage or closing of a hollow organ etc. (coronary occlusion). 5 Phonet. the momentary closure of the vocal passage. Derivatives: occlusive adj.

Webster's 1913 Dictionary

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.

Moby Thesaurus

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