| CONTRANATANT | • CONTRANATANT adj. swimming upstream. |
| COSURFACTANT | • cosurfactant n. A surfactant acting in tandem with another surfactant to enhance its properties. • COSURFACTANT n. something that works in combination with a surfactant. |
| DECONGESTANT | • decongestant n. A drug that relieves congestion, e.g. pseudoephedrine. • DECONGESTANT n. an agent that relieves congestion (as of mucous membranes). |
| DISINFECTANT | • disinfectant adj. Serving to kill germs or viruses. • disinfectant n. A substance that kills germs and/or viruses. • DISINFECTANT n. an agent that frees from infection. |
| DISINFESTANT | • disinfestant n. A substance used to eliminate pests. • DISINFESTANT n. an agent that disinfests, rids of vermin. |
| INCAPACITANT | • incapacitant n. Any device or substance used to incapacitate a person or crowd. • INCAPACITANT n. a substance that can temporarily incapacitate a person, used esp. as a weapon in biological warfare. |
| NONCOMBATANT | • noncombatant n. Alternative form of non-combatant. • non-combatant n. A non-fighting member of the armed forces. • non-combatant n. A civilian in time of conflict. |
| NONRESISTANT | • nonresistant adj. Not resistant. • nonresistant n. One who does not take part in a resistance movement. • NONRESISTANT n. something not resistant. |
| REHABILITANT | • rehabilitant n. One who is being or has been rehabilitated. • rehabilitant adj. Undergoing or pertaining to rehabilitation. • REHABILITANT n. a disabled person undergoing rehabilitation. |
| REPRESENTANT | • representant n. (Obsolete) A representative. • representant adj. Appearing or acting for another; representing. • REPRESENTANT n. a representative. |
| TRANSDUCTANT | • transductant n. A bacterial cell into which genetic material has been transduced. • TRANSDUCTANT n. an agent that effects transduction. |
| ULTRADISTANT | • ultradistant adj. Extremely distant. • ULTRADISTANT adj. extremely distant. |