# Commutation-test

[kom-yuh-tey-shuh n] /ˌkɒm yəˈteɪ ʃən/

**noun**

1.

the act of substituting one thing for another; substitution; exchange.

2.

the changing of a prison sentence or other penalty to another less severe.

3.

the act of , as to and from a place of work.

4.

the substitution of one kind of payment for another.

5.

Electricity. the act or process of .

6.

Also called commutation test. Linguistics. the technique, especially in phonological analysis, of substituting one linguistic item for another while keeping the surrounding elements constant, used as a means of determining the constituent units in a sequence and their contrasts with other units.

/ˌkɒmjʊˈteɪʃən/

**noun**

1.

a substitution or exchange

2.

3.

the reduction in severity of a penalty imposed by law

4.

the process of commutating an electric current

5.

(US) the travelling done by a commuter

n.

mid-15c., from Old French commutacion “change, transformation, exchange, barter” (13c., Modern French commutation), from Latin commutationem (nominative commutatio) “a change, alteration,” **noun** of action from past participle stem of commutare “to change, alter entirely” (see commute (v.)).

Tagged: c

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