recess

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Related to Pineal recess: Infundibular recess

recess

1. Anatomy a small cavity or depression in a bodily organ, part, or structure
2. US and Canadian a break between classes at a school
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Recess

Receding part or space, such as a cavity in a wall for a door, an alcove, or a niche.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

recess

[′rē‚ses]
(engineering)
A surface groove or depression.
(geology)
An indentation occurring in a surface, bounded by a straight line.
An area having the axial traces of folds concave toward the outer edge of the folded belt.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

recess

1. Any shallow depression in a surface.
2. A shallow depression in a floor; a sinkage.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.