Breadcrumb Home > Dictionary > Index T trimmer arch: Meaning and Definition of Find definitions for: trim'mer arch" Pronunciation: [key] — Building Trades. Building Trades. an arch, usually of brick and in the form of half of a segmental arch, between a chimney and a header in a floor structure to support a hearth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trimmer trimming TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: bowdlerize Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language