knuckle

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Related to knuckle down: out of whack, buckle down

knuckle

 [nuk´'l]
the dorsal aspect of any interphalangeal joint, or any similarly bent structure.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

knuck·le

(nŭk'ĕl),
1. A joint of a finger when the fist is closed, especially a metacarpophalangeal joint.
2. A kink or loop of intestine, as in a hernia.
[M.E. knokel]
Farlex Partner Medical Dictionary © Farlex 2012

knuckle

(nŭk′əl)
n.
a. The prominence of the dorsal aspect of a joint of a finger, especially of one of the joints connecting the fingers to the hand.
b. A rounded protuberance formed by the bones in a joint.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

knuck·le

(nŭk'ĕl)
1. A joint of a finger when the fist is closed, especially a metacarpophalangeal joint.
2. A kink or loop of intestine, as in a hernia.
[M.E. knokel]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

knuckle

The common name for a finger joint.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
"But at this stage I am a Town player and I am ready to knuckle down."
"But I'm sure they'll knuckle down and give everything they can, and hopefully they can climb the table, then sit back and enjoy the rest of the season.
He said: 'We gave it a go, and we'll take the positives from it, knuckle down and try to retain the championship.
"It was a rough and tumble game, but we have to learn to knuckle down," said Baker.
The former South African president told England to knuckle down and play their controversial World Cup match in the strife-torn state - giving moral weight to the shambolic International Cricket Council.
AIDEN MCGEADY has been told to "knuckle down" with Everton for the sake of his international career.
"I would expect him to knuckle down. What he wants to do most is train well, play games and be involved and that doesn't change." Yesterday's comments appear to suggest a slight shift in attitude by the Canaries boss to the 31-year-old Dubliner since the weekend.
LEIGH GRIFFITHS has vowed to "knuckle down" when he's back at Wolves next season.
Hancox decided to knuckle down and make the most of his talents and, just 18 months on, the gifted youngster was rewarded with a three-year contract at St Andrew's.
As for the Marshall Plan (Peter Cleland letter, July 9), this was a nation who were prepared to knuckle down and work their way out of the mess Hitler had left them.
He said: "I have to knuckle down with (Yorkshire) and start the season as well as I can.
The England-capped right-back has cut short his summer break and returned to knuckle down to pre-season training two weeks before the rest of the lads report back.