Plural of erasion; multiple instances of scraping away or wearing down by friction or mechanical action.
From Latin 'eradere' (to scrape out) + '-ion' (suffix) + '-s' (plural). The plural form allows geologists to discuss multiple erosion processes or locations where mechanical wearing has occurred.
When geologists talk about 'erosions' versus 'erasions,' they're actually distinguishing between general wearing away versus specific scraping or abrasion—a subtle difference that matters when you're mapping how a landscape got shaped by different processes!
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