micro-

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Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Prefix 1.3.1 Usage notes 1.3.2 Antonyms 1.3.3 Derived terms 1.3.4 Translations 2 French 2.1 Prefix 3 Italian 3.1 Prefix 3.1.1 Derived terms

[edit] English

[edit] Etymology

From Ancient Greek μικρός (mikros), “‘small’”).

[edit] Pronunciation

•  Audio (US)^{help, file}

[edit] Prefix

micro-

1. Very small.

   organism → microorganism

2. (metric units) One millionth.

   gram → microgram

[edit] Usage notes

• (one millionth): Officially, micro- is abbreviated as µ- (the Greek letter mu); for example, one second is 1s, so one microsecond is 1µs. However, for many purposes this is inconvenient, so writers often use either u- (for its similar appearance to µ-) or mc-, producing, for example, 1um (one micrometer) and 1mcg (one microgram).

[edit] Antonyms

• mega-

[edit] Derived terms

Look at pages starting with micro.

[edit] Translations

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[edit] French

[edit] Prefix

micro-

1. micro- (very small)
2. micro- (SI prefix)

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[edit] Italian

[edit] Prefix

micro-

1. micro- (very small)
2. micro- (SI prefix)

[edit] Derived terms

See Category:Italian words prefixed with micro-