noun. an acute and serious infection of the central nervous system caused by bacterial infection of open wounds; spasms of the jaw and laryngeal muscles may occur during the late stages.
Example sentences of the word lockjaw
1. Noun, singular or mass
Tetanus is known as lockjaw for a reason.
Dogs with lockjaw become extremely sensitive to light and sound.
3. Verb, 3rd person singular present
Use lockjaw pliers to support the frost-proof faucet valve body as the packing nut is tightened.
4. Verb, base form
The reason tetanus is referred to lockjaw is because when you first experience symptoms, you have muscle spasms in your jaw, which prevent you from opening it.