Plural of 'circularizer': multiple people or devices that distribute circulars (American spelling).
From 'circularizer' plus the regular plural '-s.' Part of a long chain: Latin 'circulus' → Old French + '-ize' + '-er' + English '-s'.
Looking at words like 'circularizers,' you can trace an amazing journey: Latin circles became French practices, which America standardized, creating compound meanings that didn't exist in the original languages.
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