- quindecagon
- quindecillion
- quindenary
- Quine
- Quine set theories
- quinhydrone
- quinhydrone electrode
- quinic acid
- quinidine
- quinine
- Quinn-Rand-Strogtz constant
- quinoa
- quinoline
- quinoline alkaloid
- quinolinones antipsychotics
- quinolizidine alkaloid
- quinolizine
- quinolone
- quinolone antibiotics
- quinolones
- quinolones used in veterinary medicine
- quinone
- quinone polymer
- quinones
- quinoxaline