There are 2 definitions of beak in English:

beak1

Syllabification: beak
Pronunciation: /bēk
 
/

noun

1A bird’s horny projecting jaws; a bill.
More example sentences
  • New research suggests that as testosterone in male birds increases, so does the level of carotenoids, the chemicals that create the bright coloring on birds' feathers, beaks, and legs.
  • Whether the flightless birds used their beaks to impale or bludgeon their prey is unknown, Chiappe says.
  • As a trombone player pulls in the slide to make a higher frequency sound by reducing the volume of the tube, so does a bird open its beak and pull back its head to reduce the volume of its vocal tract.
Synonyms
1.1The horny projecting jaw of animals other than birds, for example a turtle or squid.
More example sentences
  • Over the years whalers have reported finding a high number of large squid beaks in the mammals' stomachs, pegging sperm whales as primary predators of large squid.
  • The whalers often discovered giant squid beaks inside the stomachs of these whales.
  • The upper and the lower jaws were certainly covered with horny beaks in life, like the beak in turtles and, it can be assumed, in the Triassic rhynchosaurs.
1.2 informal A person’s nose, especially a hooked one: she can’t wait to stick her beak in
More example sentences
  • The vicious girlfriends are smart enough to realize how terribly they've behaved, but their solution is simply to stick their beaks into Kate's affairs again.
  • Do the inhabitants of North Korean gulags take comfort that the hegemonic monster of US imperialism is unable to stick its beak into the criminal justice system they were sentenced under.
  • The whole group of servants tried to stifle their giggles but Aimée's mother turned and shot an evil glare at them over her beak of a nose.
1.3A projection at the prow of an ancient warship, typically shaped to resemble the head of a bird or other animal, used to pierce the hulls of enemy ships.
More example sentences
  • ‘Heads’ was the name given to that part of sailing ships forward of the forecastle and around the beak which was used by the crew as their lavatory.
  • The corvus crashed downward, its beak driving into the other ship's deck, whereupon Roman infantry dashed across.
  • The designs on Bronze Age metalwork and rock carvings show boats with a beak at the prow.

Origin

Middle English: from Old French bec, from Latin beccus, of Celtic origin.

Derivatives

beaked

adjective
[in combination]: a yellow-beaked alpine chough
More example sentences
  • In the earliest known post-Tapinocephalus Zone fauna of southern Africa (where the fossil record for late Permian tetrapods is most complete), new groups of big herbivores - the beaked and toothless dicynodonts - appear.
  • Of those groups only the higher Dicynodontia were to be successful, and in fact these stocky, toothless and beaked animals remained the dominant terrestrial herbivores right up until the Carnian epoch (Late Triassic period).
  • Many species will specialize on certain types of seeds; small beaked sparrows eat small seeds, large beaked sparrows eat large seeds.

Definition of beak in:

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Word of the day impudicity
Pronunciation: ˌimpyəˈdisitē
noun
lack of modesty

There are 2 definitions of beak in English:

beak2

Line breaks: beak

Entry from British & World English dictionary

noun

British informal
A magistrate or a schoolmaster.

Origin

late 18th century: probably from criminals' slang.

Definition of beak in: