beak

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Related to beaked: beaked whale

beak

(bēk),
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.
[L. beccus]

beak

(bēk)
n.
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.

beak

1 any pointed anatomical structure, such as the beak of the sphenoid bone.
2 a pair of dental pincers used in shaping prostheses.
3 a radiographic image of a bony protuberance adjacent to a degenerative intervertebral disk.

beak

  1. (also called bill) the jaws and associated horny covering in a bird or turtle.
  2. any pointed projection in plant fruits.
  3. a projecting jawbone in fish such as pike.
  4. the tip of the UMBO in bivalve molluscs.
  5. the jaws of a CEPHALOPOD such as the octopus.

beak

(bēk)
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.
[L. beccus]

beak

the hard keratinization (or rhamphotheca) which provides the horny covering of the beak bones, plus the beak bones, of birds. The dorsal ridge of the upper beak is the culmen, the similar keel of the lower beak is the gonys. The cutting edges of the beak are the tomia. Called also bill.
Enlarge picture
Different shape of beak between species. By permission from Aspinall V, O'Reilly M, Introduction to Veterinary Anatomy and Physiology, Butterworth Heinemann, 2004

beak avulsion
traumatic separation of the upper and lower beak at the base requires hand feeding for survival of the bird. Some attempts at devising an artificial beak have been made, but attachment is a major problem.
beak fracture
occurs with trauma and requires immobilization, often with innovative procedures (see acrylic glue), without restricting food intake by the bird during recovery. Severe trauma may result in avulsion of upper or lower beak.
beak necrosis
a condition of chickens and turkeys caused by excessively fine mashed feeds.
beak overgrowth
can result from malocclusion, liver disease, lack of wear, aging, nutritional deficiency, and most commonly infestation by the mite, Cnemidocoptes pilae.
psittacine beak and feather disease
see psittacine beak and feather disease.
beak sign
the radiographic feature of contrast material extending through an elongated, concentrically narrowed pylorus indicative of hypertrophy of the sphincter.
beak trimming
in most modern poultry houses the chances of cannibalism developing are so high that beak trimming is almost a necessity, especially if the birds are to be reared in full light. Light-restricted accommodation greatly reduces the prevalence of this vice. A temporary trim is done at a few days of age but a permanent trim is necessary later. Special instruments, utilizing a hot, cutting blade cautery, are used and the operation must be done by an expert or badly deformed beaks result and the birds are unable to feed properly. Alternatives to trimming include the fitting of spectacles or pick guards but these are expensive, time-consuming to put on and not feasible for birds in cages.
References in periodicals archive ?
Specifically, abundance estimates were produced for unidentified Mesoplodon beaked whales; unidentified beaked whales; rorquals identified as either sei (Balaenoptera borealis) or Bryde's (B.
However, it had many features that distinguished it from the Baird's beaked whale; the newly discovered whale's skull had a distinct slope and its dorsal fin was also different.
Many of the known beaked whale fossils are dredged by fishermen from the bottom of the sea.
According to the Whale Facts website, the Longman's beaked whale is one of the rarest among the entire cetacean species, which is comprised of over 80 different marine mammals and is made up of all species of whale, dolphin and porpoise.
lt;BRobson Green with Ben Burville, during filming of Tales From Northumberland, featuring white beaked dolphins
cavirostris, but has been reported in the diet of Baird's Beaked Whale (Berardius bairdii) at similar latitude in the western Pacific off Honshu, Japan and in the boreal southern Sea of Okhotsk (Walker and others 2002).
We know so little about beaked whales because they prefer deep waters far offshore, where they can dive on one breath of air to depths of over a mile for up to an hour and a half," said Woods Hole Oceanographic Institution biologist Peter Tyack, lead author of the report published March 2011 in the journal PLoS ONE (Public Library of Science).
Why did humans always repeat what was beaked to them, thought Patrick as he tried to explain why he had travelled many blacks and brights to come here.
The Cuvier's beaked whale is a so-called toothed whale.
An analogy between the exhibition and the tedium of quotidian domestic life is (literally) drawn on many of the black columns, which feature at their bases miniature sketches in white felt-tip of a beaked, anthropomorphic figure--the artist, we are told in a wall text, in the guise of a raven--ritualistically killing time with empty activity: ruminatively chewing cereal, smoking a cigarette, and staring at a mirror and a clock.
The sequel to "A Big Beaked, Big Bellied Bird Named Bill", Brendon Mouse's Big Idea To Save The Big Bird Bunch is a picturebook story about a mouse's plan to save his avian friends from the bird-eating alligator of the first book.
Season's first catch of Baird's beaked whale landed in Hokkaido