What Does the Prefix Milli- mean?

Answer – The prefix milli– means “one thousandth of.” It is denoted by the symbol m.

Explanation:

Milli- originated from the Latin word mille, which means “thousand.” It is used extensively in the metric system to indicate a thousandth of a unit; in other words, it is $10^{- 3}$ times another unit.

Milligram (mg), for instance, indicates one-thousandth of a gram.

$\Rightarrow 1 m g = 10^{- 3} g$

$\Rightarrow 1 g = 10^{3} m g = 1000 m g$

Similarly, millimeter (mm) refers to one-thousandth of a meter.

$\Rightarrow 1 m m = 10^{- 3} m$

$\Rightarrow 1 m = 10^{3} m m = 1000 m m$

Milliliter (mL) is the unit for one-thousandth of a liter.

$\Rightarrow 1 m L = 10^{- 3} L$

$\Rightarrow 1 L = 10^{3} m L = 1000 m L$

Milliamperes (mA) denotes one-thousandth of an ampere.

$\Rightarrow 1 m A = 10^{- 3} A$

$\Rightarrow 1 A = 10^{3} m A = 1000 m A$

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Answer – The prefix milli– means “one thousandth of.” It is denoted by the symbol m.

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