alternation

[ awl-ter-ney-shuh n, al- ]
/ ˌɔl tərˈneɪ ʃən, ˌæl- /

noun

the act or process of alternating or the state of being alternated.
alternate succession; repeated rotation: the alternation of the seasons.
Electricity. a single fluctuation in the absolute value of an alternating current or voltage from zero to a maximum and back to zero, being equal to one half cycle.
Linguistics. variation in the form of a linguistic unit as it occurs in different environments or under different conditions, as between the -ed and -en forms of the past participle in danced and spoken or between the (t) and (d) pronunciations of the past tense suffix -ed in hopped and rubbed.

Origin of alternation

First recorded in 1605–15, alternation is from the Late Latin word alternātiōn- (stem of alternātiō). See alternate, -ion

Example sentences from the Web for alternation

British Dictionary definitions for alternation

alternation
/ (ˌɔːltəˈneɪʃən) /

noun

successive change from one condition or action to another and back again repeatedly
logic another name for disjunction (def. 3)

Medical definitions for alternation

alternation
[ ôl′tər-nāshən, ăl′- ]

n.

Successive change from one thing or state to another and back again.