Final answer:
The prefix 'multi-' means 'many' or 'much' and adjusts unit sizes based on multiples or fractions.
Explanation:
Multi- is the prefix in the medical term multiform, indicating 'many' or 'much.' In the context of numerical prefixes, multi- signifies a multiple or fraction of a fundamental unit to create a more convenient unit size. For example, milli- represents one-thousandth of the original unit, showing how prefixes alter unit sizes based on multiples or fractions.
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