knee jerk

1. 1.

   a reflex extension of the leg resulting from a sharp tap on the patellar tendon

   Synonymsknee-jerk reflexpatellar reflex

   Broaderreflex

Questions about knee jerk

What does knee jerk mean?

knee jerk means "a reflex extension of the leg resulting from a sharp tap on the patellar tendon".

What is another word for knee jerk?

Close synonyms include knee-jerk reflex, patellar reflex. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is knee jerk a common word?