- the act or state of occluding or the state of being occluded.
- Dentistry. the fitting together of the teeth of the lower jaw with the corresponding teeth of the upper jaw when the jaws are closed.
- Pathology. closure or blockage of a blood vessel: coronary occlusion.
- Phonetics. momentary complete closure at some area in the vocal tract, causing stoppage of the flow of air and accumulation of pressure.
Origin of occlusion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for occlusal
Occlusal views of upper and lower right cheek-teeth, of the three Recent genera of the subfamily Zapodinae.
Note especially the variation in complexity of occlusal pattern, width of re-entrant folds, and degree of tubercularity.
The occlusal pattern shows little variation and was of no use in separating species.
Individual variation in the occlusal pattern of the molariform teeth is slight.
M3 shows a great amount of wear, and the occlusal pattern is not too clear.
- the act or process of occluding or the state of being occluded
- meteorol another term for occluded front
- dentistry the normal position of the teeth when the jaws are closed
- phonetics the complete closure of the vocal tract at some point, as in the closure prior to the articulation of a plosive
Word Origin and History for occlusal
1640s, from Medieval Latin occlusionem (nominative occlusio), noun of action from past participle stem of Latin occludere (see occlude). Dentistry sense is from 1880.
Online Etymology Dictionary, © 2010 Douglas Harper
- Of or relating to occlusion or closure.
- Of or relating to the contacting surfaces of opposing teeth, especially the biting or chewing surfaces.
- The act of occluding or the state of being occluded.
- An obstruction or closure of a body passage.
- Any contact between the cutting or chewing surfaces of opposing teeth.
- The alignment of the teeth of the upper and lower jaws when brought together.
- The absorption of a gas or other substance, as by a metal.
- The inclusion of one substance within another.
- An obstruction in a passageway, especially of the body.
- The alignment of the upper and lower sets of teeth with each other.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.