SSR

SSR (plural SSRs)

1. (historical) Initialism of Soviet Socialist Republic.
2. (aviation) Initialism of secondary surveillance radar.
3. (electronics) Initialism of solid-state relay.
4. (US, military, nautical, obsolete) Initialism of Sub Surface Radar — a radar picket submarine.
5. (aviation, travel industry) Initialism of special service requirement (or Request).
6. (statistics) Initialism of sum of squared residuals.
7. (web development) Initialism of server-side rendering.
8. (education) Initialism of sustained silent reading.
9. (nautical) Initialism of Small Ships Register.
10. (military) Initialism of Special Support and Reconnaissance.

• (military):   radar picket on Wikipedia.Wikipedia

• srs, SRS, SRs, RSS, /srs, S/RS

• IPA^(key): [e̞sɨe̞sɨa̠ːɾɯ̟]

SSR(エスエスアール) • (esu-esu-āru) 

1. (collectible card games, video games) super special rare, or any synonymous variations