[ 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

an·nu·lar·i·ty, nounan·nu·lar·ly, adverbin·ter·an·nu·lar, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for annular

British Dictionary definitions for annular


/ (ˈænjʊlə) /


ring-shaped; of or forming a ring

Derived Forms

annularity (ˌænjʊˈlærɪtɪ), nounannularly, adverb

Word Origin for annular

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

Medicine definitions for annular


[ ănyə-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.

Science definitions for annular


[ ănyə-lər ]

Forming or shaped like a ring.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.