Meaning

1 senses
  1. A sudden reflexive movement of the leg below the knee, as a reaction to a tap to the tendon just below the patella (kneecap).

    Kniereflex, Kniesehnenreflex, Patellarreflex

Translations

2 languages
Deutsch
By meaning 1
reflex extension of the lower leg due to tap below knee:

Origin

From knee + jerk, First attested c. 1876, and derived from a figurative sense of the patel

From knee + jerk, First attested c. 1876, and derived from a figurative sense of the patellar reflex.

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knee-jerk — meaning, examples, forms, synonyms | Krumeto