| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024al•ter•na•tion (ôl′tər nā′shən, al′-),USA pronunciation n. - the act or process of alternating or the state of being alternated.
- alternate succession;
repeated rotation:the alternation of the seasons. - Electricitya 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.
- Linguisticsvariation 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.
- Late Latin alternātiōn- (stem of alternātiō). See alternate, -ion
- 1605–15
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