Definition of "much-used" [much-used]

• Having teeth of a specified kind: pleurodont. (suffix)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Taxa stems from the Latin verb taxāre, meaning “to assess” and related of course to tax but also to touch, task, taste, tangible, and the much-used Global English word contact."
• "A much-used “giant eye” with real star power—it has served, after all, as a backdrop to movies ranging from Contact to the James Bond film GoldenEye and an X-Files episode called “Little Green Men”—it nonetheless belongs to the past and is struggling to hold on to the limited National Science Foundation funding that it receives."
• "He threw away his musty bath towel, the dead shower curtain, and his ragged, much-used sheets."