| Subject | German | English |
| stat. | Cochran's Q | Cochran's Q-test |
| med. | Q.R.S.T.-Strecke im Elektrokardiogramm | Q.R.S.T. interval |
| med. | Q.s. | sufficient quantity (quantum satis, quantum sufficit) |
| med., agric. | s.q. | sufficient quantity (quantum satis, quantum sufficiat, quantum sufficit) |
| stat. | Yule's Q | Yule's Q |