four-cycle en · NOUN
Meanings
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Any four-stroke cycle, such as the Otto cycle, for an internal combustion engine.
[…] well-known automobiles will be fitted with two-cycle engines, whereas they are now equipped with four-cycles.
1862, Gas Engine, volume 6, page 362:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| four-cycles | Number=Plur | lexicographic |