| 释义 |
com·mu·ta·tion
\ˌkämyəˈtāshən\ noun
(-s)
Etymology: Middle English, from Middle French, from Latin commutation-, commutatio, from commutatus past participle of commutare to change) + -ion-, -io -ion — more at commute
1. : exchange, trade, barter
< the transatlantic commutation of experts — Fortune >
2. archaic : change, alteration
3. : substitution, interchange, replacement
4. : substitution in a charge, assessment, payment, or remuneration of one form, method, schedule, or amount for another : an arrangement effecting such substitution : money or other value involved
< commutation by money payment in place of the exacted service >
< a commutation whereby the remaining payments were lumped together >
< officers living off the post receiving rental allowance commutation >
5.
a. : change of a legal penalty or punishment to a lesser one
< commutation of the death sentence to a long prison term >
b. : substitution of one work for another in fulfilling a religious vow
6. : act of commuting : travel back and forth between two points, especially between home and work, repeated a certain number of times within a given interval
7.
a. : reversal or transference of the connections between an armature coil and the external circuit in a direct-current dynamo or motor
b. : the partial overlapping of successive cycles of current from successive anodes in a polyphase rectifier |