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[an-yuh-ler] /ˈæn yə lər/
having the form of a ring.
(of a carpenter's nail) having a series of concentric grooves to improve holding power.
Origin of annular
1565-75; < Latin annulāris, equivalent to annul(us) ring (variant of ānulus) + -āris -ar1
Related forms
annularity, noun
annularly, adverb
interannular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for annular


ring-shaped; of or forming a ring
Derived Forms
annularity (ˌænjʊˈlærɪtɪ) noun
annularly, adverb
Word Origin
C16: from Latin annulāris, from annulus, ānulus ring
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for annular

"ring-shaped," 1570s, from French annulaire (16c.) or directly from Latin annularis "pertaining to a ring," from annulus, diminutive of anus "ring" (see anus). An annular eclipse (1727) is one in which the dark body of the moon is smaller than the disk of the sun, so that at the height of it the sun appears as a ring of light. Related: Annularity.

Online Etymology Dictionary, © 2010 Douglas Harper
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annular in Medicine

annular an·nu·lar (ān'yə-lər)
Shaped like or forming a ring.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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annular in Science
Forming or shaped like a ring.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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