lagging. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.

The American Heritage^® Dictionary of the English Language: Fourth Edition. 2000.

lagging

SYLLABICATION:	lag·ging
PRONUNCIATION:	lgng
NOUN:	1. Insulation used to prevent heat diffusion, as from a steam pipe. 2. A wooden frame built especially to support the sides of an arch until the keystone is positioned.
ETYMOLOGY:	From lag².


The American Heritage^® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved.