knee-jerk

短语

[医] 膝反射

发音

US

词形变化

knee-jerks 复数 more knee-jerk 比较级 most knee-jerk 最高级

别名

kneejerk

释义与例句

n.
  1. 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).

adj.
  1. 1.

    Unthinking, not carefully considered, (nearly) automatic, spontaneous, easily predictable.

    He gave a knee-jerk response.

词汇关系

名词

同义词 2

kneejerk reflex patellar reflex

上位词 3

reflex reflex response unconditioned reflex

词源

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

来源：wiktionary