knock on

1 of 3

transitive verb

: to knock onward : knock forward
specifically : to knock (the ball in rugby) forward in the direction of the opponents' dead-ball line with the hand or arm


2 of 3


plural knock-ons
: the action of knocking on


3 of 3


: produced or projected as a result of the collision of an energetic particle (as a neutron or fission fragment) from outside an atom with an elementary particle inside
a knock-on shower of particles
a knock-on atom
a knock-on electron

Word History



knock on


knock on

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Dictionary Entries Near knock on

Cite this Entry

“Knock on.” Dictionary, Merriam-Webster, Accessed 11 Dec. 2023.

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