Definition of TSR in English:

TSR

Syllabification: TSR

abbreviation

Computing
Terminate and stay resident, denoting a type of program that remains in the memory of a computer after it has finished running and that can be quickly reactivated.

Definition of TSR in:

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Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal