单词 | reciprocatory |
释义 | reciprocatory/rɪˈsɪprəˌkeɪt(ə)ri/adjective Reciprocal, reciprocating; (Mechanics and Engineering ) = reciprocating. OriginEarly 19th century; earliest use found in Charles Partington (fl. 1820–1835), writer and lecturer on technology and practical science. From reciprocate + -ory. |
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