extended spasm of the jaw muscle tissue
- The lockjaw
- The lockjaw.
incapacity to start the lips fully. This may be due to spasm of the jaw muscle tissue and get an indication of tetanus (lockjaw). Or it might be considering abnormally short jaw muscle tissue, like in the trismus-pseudocamptodactyly problem.
"lockjaw," 1690s, Modern Latin, from Greek trismos "a scream; a grinding, rasping," comparable to trizein "to chirp, gnash," imitative.
(n.) The lockjaw.
In strychnine poisoning trismus or lockjaw is generally secondary to spasm of the other muscles, while in tetanus it is usually the first symptom, no relaxation taking place between the spasms.