Prefixes are key morphemes in English vocabulary that begin words. The origin of the prefix micro- is an ancient Greek word which meant “small.” This prefix appears in no “small” number of English vocabulary words; microphone, microwave, and micromanager are a few noteworthy examples. An easy way to remember that the prefix micro- means “small” is through the word microscope, an instrument which allows the viewer to see “small” living things.
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