beak(redirected from Psittacine beak and feather disease)
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1. The nose of pliers used in dentistry for contouring and adjusting wrought or cast metal dental appliances.
2. Sometimes used to describe a beak-shaped anatomic structure.
Farlex Partner Medical Dictionary © Farlex 2012
a. The bill of a bird, especially one that is strong and curved, such as that of a hawk or a finch.
b. A similar structure in other animals, such as turtles, insects, or fish.
beaked (bēkt) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
- (also called bill) the jaws and associated horny covering in a bird or turtle.
- any pointed projection in plant fruits.
- a projecting jawbone in fish such as pike.
- the tip of the UMBO in bivalve molluscs.
- the jaws of a CEPHALOPOD such as the octopus.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
1. Nose of pliers used in dentistry to contour and adjust wrought or cast metal dental appliances.
2. Sometimes used to describe any beak-shaped anatomic structure.
Medical Dictionary for the Dental Professions © Farlex 2012