SRS

(automotive) Initialism of supplemental restraint system or secondary restraint system (car airbags).

(medicine) Initialism of sex reassignment surgery.

(statistics) Initialism of simple random sample, a sample chosen from a population so that any sample of the same size could have equally likely been chosen.

(biochemistry) Initialism of small RNA sequencing.

(software) Initialism of software requirement specification.

(system) Initialism of system requirement specification.

(education, software) Initialism of spaced repetition software.