TSR

noun

, plural TSRs, TSR's.

1. a computer program with any of several ancillary functions, usually held resident in RAM for instant activation while one is using another program.

Word History and Origins

Origin of TSR¹

t(erminate and) s(tay) r(esident)

Example Sentences

As part of the study, the researchers determined Salmonella has a special protein receptor called Tsr that enables bacteria to sense and swim toward serum.

From Science Daily

Ms. Jaquays eventually worked with gaming friends to produce The Dungeoneer, a fanzine of D&D content for which she secured permission from TSR, the company that published the game.

From New York Times

She spent years doing freelance art and design work for RPG publishers before she began working for TSR full time in the 1990s.

From New York Times

TSR, Inc., down 90 cents to $7.86.

From Seattle Times

“TSR’s failure is a tale of misfortune and mistakes kept secret for decades, here given up to the light,” he writes.

From Washington Post