plaque

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plaque

1. Pathol any small abnormal patch on or within the body, such as the typical lesion of psoriasis
2. short for dental plaque
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Plaque

A tablet, often inscribed, added to or set into a surface on the exterior or interior wall.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

plaque

[plak]
(medicine)
A patch, or an abnormal flat area on any internal or external body surface.
A localized area of atherosclerosis.
(virology)
A clear area representing a colony of viruses on a plate culture formed by lysis of the host cell.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

plaque

A tablet that is affixed to the surface of a wall or set into a wall; often inscribed to commemorate a special event or to serve as a memorial.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.