[se-rey-shuh n] /sɛˈreɪ ʃən/
serrated condition or form.
a serrated edge or formation.
one of the notches or teeth of such an edge or formation.
Also, serrature
[ser-uh-cher] /ˈsɛr ə tʃər/ (Show IPA)
1700–10; < Neo-Latin serrātiōn- (stem of serrātiō). See serrate, -ion
Example Sentences for serration
Heat diffusing rings and knurled serration that lock the thermostatic dial to the valve body.
The decision to install a bench, step, or serration depends on the length and degree of the slope.
It exhibited convex edges with serration present along the lower half of the blade.
Serration is sometimes exhibited on the blade edges.
British Dictionary definitions for serration
serration or (less commonly) serrature (səˈreɪʃən, ˈsɛrətʃə)
1.  the state or condition of being serrated
2.  a row of notches or toothlike projections on an edge
3.  a single notch
serrature or (less commonly) serrature

Collins English Dictionary - Complete & Unabridged 10th Edition
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serration in Medicine

serration ser·ra·tion (sə-rā'shən, sě-)

  1. The state of being serrate.

  2. A series or set of teeth or notches.

  3. A single tooth or notch in a serrate edge.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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