Reference meaning
knuckle
Last updated
a joint of a finger when the fist is closed
Related source terms
knuckle jointmetacarpophalangeal joint
Other meanings
2. verb
press or rub with the knuckles
3. verb
shoot a marble while keeping one's knuckles on the ground
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 05585205-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.