单词	noncommutative
释义	noncommutative adjective non·​com·​mu·​ta·​tive ˌnän-kə-ˈmyü-tə-tiv  -ˈkäm-yə-ˌtā-tiv mathematics : of, relating to, having, or being the property that a given mathematical operation and set have when the result obtained using any two elements of the set with the operation differs with the order in which the elements are used : not commutative Subtraction is a noncommutative operation. noncommutativity ˌnän-kə-ˌmyü-tə-ˈti-və-tē  -ˌkäm-yə-tə- noun Word History First Known Use 1846, in the meaning defined above
随便看	fearfullier fearfulliest fearfully fearfulness fearfulnesses fearier feariest fearing fearing for fearless fearlesslier fearlessliest fearlessly fearlessness fearlessnesses fearmonger fearmongering fearnaught fearnought fears fears for fearsome ciliophorae ciliophorans ciliophoras

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