1. A scolding, nagging, bad-tempered woman; a shrew.
2. A violent, turbulent, or brawling woman.
Note: Termagant can also be used as an adjective to describe a person as being shrewish and scolding.
"We gods are continually suffering in the most cruel manner at one another's hands while helping mortals; and we all owe you a grudge for having begotten that mad termagant of a daughter, who is always committing outrage of some kind."- The Iliad, Homer.