Dictionary.com

onlay

[ noun on-ley, awn-; verb on-ley, awn- ]
/ noun ˈɒnˌleɪ, ˈɔn-; verb ɒnˈleɪ, ɔn- /
Save This Word!

noun
an overlay, especially one in relief.
Dentistry. an inlay that restores the occlusal surface of a tooth.
verb (used with object), on·laid, on·lay·ing.
to place or mount (an onlay) on a surface, especially for decorative purposes.
QUIZ
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?

Origin of onlay

1875–80; on + lay1, after verb phrase lay on
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use onlay in a sentence

  • Couched cord or filoselle is useful in covering the raw edge of the onlay, not so much masking the joints as making them sightly.

    Art in Needlework|Lewis F. Day
  • It disturbs the breadth, which is so valuable a characteristic of onlay.

    Art in Needlework|Lewis F. Day

Medical definitions for onlay

onlay
[ ŏnlā′ ]

n.
A cast restoration, usually made of gold, that is attached to the occlusal surface of a tooth.
A bone graft applied to the exterior surface of the bone.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK