# mean

## Definitions

### General English

- adjective not
__liking__to spend money or to give people things - adjective nasty or
__unpleasant__ - verb
__used____when__you have not understood__something__ - verb to show or
__represent____something__

### General Science

- verb to
__result in__something

### Aviation

### Computing

- noun the average value of a set of numbers or values

### Economics

- noun an average figure, calculated by adding several figures together and dividing by the number of figures added

### Electronics

- The value obtained by first adding together a set of quantities, and then dividing by the
__number__of quantities in the set. Also called average, average value (1), or arithmetic mean. - For a product of n factors, the nth
__root__. For instance, the geometric mean of 6 and 216 (a total of two factors) is 36, as the__square__root of 1,296 is 36. Also called geometric mean.

### Health Economics

- (written asA measure of the central tendency of a set of numbers. The average of a set of numbers. The sum of the observations divided by their number. Arithmetic mean = ∑
*Mean*)*X*, where the_{i}/N*X*are the values of_{i}*X*and*N*is the total number of observations. The qualifier 'arithmetic' is usually dropped. - abbreviation forarithmetic mean

### Slang

- adjective wonderful, impressive, excellent. A typical reversal of the standard (American) meaning in black code and later teenage usage, like the more recent
**bad**and**wicked**.

## Origin & History of “mean”

__English__has

__three__

__distinct__words

*mean*. The oldest, ‘intend’ (OE), goes back via a prehistoric

__west__Germanic *

*mainjan*to the Indo-European

__base__*

*men*- ‘think’ (source

__also__of English

*memory,*, etc).

__mention__, mindThe adjective ‘petty, stingy’ (12

^{th}c.) originally meant ‘common, shared by all’. It comes

__from__a prehistoric Germanic *

*gamainiz*(source also of German

*gemein*‘common, shared’),

__which__was formed from the collective prefix *

*ga*- and *

*mainiz*.

__this__went back to an Indo-European base *

*moi*-, *

*mei*- ‘change, exchange’, which also lies

__behind__English

*mad,*, and the second

__moult__,__mutate__, mutual__syllable__of

*common*.

*Mean*’s

__semantic__history can be traced from ‘common to all’ via ‘inferior’ and ‘low, ignoble’ to ‘petty’.

The adjective ‘intermediate, average’ (14

^{th}c.) came via Anglo-

__Norman__

*meen*and Old French

*meien*from Latin

*mediānus*(source of English

*median*), a derivative of

*medius*‘middle’ (source of English

*medium*). It forms the basis of the

__plural__

__noun__

*means*‘method’ (14

^{th}c.), and of the

__compound__

__adverb__

*meanwhile*(15

^{th}c.).