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semirotary

adjective
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semi·​rotary
variants: or semirotative \ "+ \ or semirotatory \ "+ \

Definition of semirotary

: capable of turning or rocking about halfway round a semirotary valve

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History and Etymology for semirotary

semi- + rotary or rotative or rotatory

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“Semirotary.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/semirotary. Accessed 11 December 2019.

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