- to close, shut, or stop up (a passage, opening, etc.).
- to shut in, out, or off.
- Physical Chemistry. (of certain metals and other solids) to incorporate (gases and other foreign substances), as by absorption or adsorption.
- Dentistry. to shut or close, with the cusps of the opposing teeth of the upper and lower jaws fitting together.
- Meteorology. to form an occluded front.
Origin of occlude
SynonymsSee more synonyms on Thesaurus.com
1. obstruct, clog, block, plug.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (tr) to block or stop up (a passage or opening); obstruct
- (tr) to prevent the passage of
- (tr) chem (of a solid) to incorporate (a substance) by absorption or adsorption
- meteorol to form or cause to form an occluded front
- dentistry to produce or cause to produce occlusion, as in chewing
C16: from Latin occlūdere, from ob- (intensive) + claudere to close
Word Origin and History for unoccluded
Online Etymology Dictionary, © 2010 Douglas Harper
- To cause to become closed; obstruct.
- To prevent the passage of.
- To bring together the upper and lower teeth in proper alignment for chewing.
- To enclose a virus, as in an inclusion body.
- In chemistry, to absorb and retain gases and other substances.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- To force air upward from the Earth's surface, as when a cold front overtakes and undercuts a warm front.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.