| QR | quality review; quantity is correct [Lat. quantum rectum]; quieting response; quinaldine red |
|---|---|
| qr | quadriradial; quantity is correct [Lat. quantum rectum]; quarter |
| qv | as much as you desire [Lat. quantum vis]; which see [Lat. quod vide] |
| recon | the smallest unit of DNA capable of recombination [recombination + Gr. on quantum] |
| SQUID | superconducting quantum interference device |