knock

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knock

(nok),
1. Colloquialism for a blow, especially a blow to the head.
2. A sound simulating that of a blow or rap.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Knocking on doors is about the human effort to reach our potential.
The controller task is to manage each cylinder spark advance to achieve a pre-defined combustion phase, while guaranteeing that a pre-fixed knocking intensity level is not largely nor frequently overcome.
The acquisition broadens Knocking's broadcast relationships for providing TV segments that showcase unique brands, allowing viewers the rare opportunity to instantly purchase featured products at exclusive discounts negotiated by Knocking and offered through Knocking's e-commerce platform.
To resolve this common complaint, users can simply see what's inside by knocking twice on the glass of InstaView Door-in-Doorao without needing to open it.
'If you do not attend or send a qualified family representative, then the police team of Operation Tokhang together with Barangay representatives will come knocking at your door,' the letter read.
Measured- and computed peak pressures and temperatures at knocking conditions for conditions 1-4 (see also Table 2).
When the porter is awakened from a drunken stupor by knocking at the door he invites three imaginary guests into his hangover, using knock knock to introduce each one.
An unknown man pushed past her, knocking her to the ground.
Those who performed outward-directed gestures-like knocking on wood or throwing a ball--felt more certain that the action had "unjinxed" them than did those who had performed self-directed gestures such as knocking on themselves or holding a ball.
don't take it, the phantoms start knocking. They knock and they