Definition of reciprocatory in US English:

reciprocatory

adjective

  • Reciprocal, reciprocating; (Mechanics and Engineering) = "reciprocating".

Origin

Early 19th century; earliest use found in Charles Partington (fl. 1820–1835), writer and lecturer on technology and practical science. From reciprocate + -ory.

Pronunciation

reciprocatory

/rɪˈsɪprəˌkeɪt(ə)ri/