/ Dictionary / Index M mesoscale: Meaning and Definition of Find definitions for: mes•o•scale Pronunciation: (mez'u-skāl", mes'-, mē'zu-, -su-), [key] — adj. pertaining to meteorological phenomena, such as wind circulation and cloud patterns, that are about 1–100 km (0.6–60 mi.) in horizontal extent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mesorrhine mesosome Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language