(law) Something that must not be removed or modified during redistribution. / (mathematics) A section that will not vary through changing state.

The part of an orchestra formed by brass instruments.

The section of a band maintaining the rhythm, consisting of e.g. drums, bass, keyboard, etc.

(programming) A piece of code that accesses a shared resource that must not be concurrently accessed by more than one thread of execution.

(computing) The part of the data division of a COBOL program that describes the format of variables and constants passed to the program as parameters, either from JCL or from a calling program

(computing) The part of the environment division of a COBOL program that specifies the computer that the compiled code is to run on, and hence the instruction set that the compiler should use.

(computing) The part of the data division of a COBOL program that describes the format of the logical records associated with external files to be accessed by the progrem

(surgery) An incision in the abdomen for surgery on any of the abdominal organs.

(Canada, US) The seats high in the back of bleachers, stands, or the balcony at a theater or stadium, usually cheaper and with a poorer view than other seats.

(mineralogy) A thin, optically flat sliver of a material, especially a rock or mineral, that can be used in microscopy. / Used other than figuratively or idiomatically: see thin, section.