(n.) The bill or nib of a bird, consisting of a horny sheath, covering the jaws. The form varied much according to the food and habits of the bird, and is largely used in the classification of birds.
(n.) A similar bill in other animals, as the turtles.
(n.) The long projecting sucking mouth of some insects, and other invertebrates, as in the Hemiptera.
(n.) The upper or projecting part of the shell, near the hinge of a bivalve.
(n.) The prolongation of certain univalve shells containing the canal.
(n.) Anything projecting or ending in a point, like a beak, as a promontory of land.
(n.) A beam, shod or armed at the end with a metal head or point, and projecting from the prow of an ancient galley, in order to pierce the vessel of an enemy; a beakhead.
(n.) That part of a ship, before the forecastle, which is fastened to the stem, and supported by the main knee.
(n.) A continuous slight projection ending in an arris or narrow fillet; that part of a drip from which the water is thrown off.
(n.) Any process somewhat like the beak of a bird, terminating the fruit or other parts of a plant.
(n.) A toe clip. See Clip, n. (Far.).
(n.) A magistrate or policeman.
Example Sentences:
(1) Bidrin treatment of quail embryos results in axial anomalies as well as malformations of the beak and the limbs.
(2) Apert-Crouzon syndrome (formerly ACS type 2; 10130) is now considered a subset of autosomal dominant Apert acrocephalosyndactyly type 1 (10120), with features of craniosynostoisis, syndactyly of all extremities, maxillary hypoplasia, "parrot-beaked" nose, hypertelorism, exophthalmos, external strabismus, and short upper lip.
(3) Two experiments were conducted to compare beak treatment effects on pullets of three genetic stocks.
(4) Between June 20 and the end of August, whalers in Wadaura and three other villages will be permitted to catch 66 Baird's beaked whales that, because of their relatively small size, are not covered by the 1986 International Whaling Commission's ban on commercial hunting.
(5) A total of 45 of the 60 birds in the aviary developed pox lesions around the beaks and eyes.
(6) Two cases are reported with the following symptoms: broad thumbs and toes, typical facial abnormalities with beaked nose and hypertelorism.
(7) Strain effects were noted in rate of feed consumption following beak trimming.
(8) The area dorsalis projects 10 degrees-15 degrees below the eye-beak axis where the field is 35 degrees wide.
(9) Retinoid treatment interferes with reciprocal epithelial-mesenchymal interactions in the upper beak.
(10) Primary sensory projection areas, such as the ectostriatum (visual), hyperstriatum intercalatum superius (visual), nucleus basalis (beak representation), the input layer L2 of the auditory field L and the somatosensory area rostral to field L were selectively left unstained.
(11) The beak and legs malformations are prevented by analogs of nicotinamide.
(12) The various components of these muscles are provided with stiff as well as wide aponeuroses and tendons (much stronger than those observed in Columba), indicating forceful opening and closure of the beaks for plucking off the fruit, grasping it hard and manipulating it with the help of the beaks before swallowing.
(13) A cyclical load of 500 N was applied to the handles of the pliers, while a 0.9 mm (0.036 inch) round, stainless steel wire was held between the tips of the beaks.
(14) The evolution of the component was studied after sequencing the component in different odontocetes representing the Delphinidae (delphinids), Monodontidae (narwhals), and Ziphiidae (beaked whales).
(15) Beak trimming affected body weight and feed usage levels for the sexes differently.
(16) Egg quality and size were not influenced by beak trimming treatments.
(17) This study in the chicken investigated whether the integrity of taste buds in the lower beak is normally dependent upon innervation by the chorda tympani.
(18) A low incidence of gross malformations such as twisted limbs, abnormal beak, short neck and everted viscera were observed; however, the increased incidence was not statistically significant when compared to controls.
(19) The value of a combined developmental and functional approach to morphology, i.e., integrated investigation of development of structure and function of the beaks and related jaw musculature, is discussed.
(20) Genetic stock by age and beak treatment by age interactions were present for hen-housed production and egg mass, and the interactions appeared to result primarily from increased mortality from cannibalistic pecking with increased age.
Peck
Definition:
(n.) The fourth part of a bushel; a dry measure of eight quarts; as, a peck of wheat.
(n.) A great deal; a large or excessive quantity.
(v.) To strike with the beak; to thrust the beak into; as, a bird pecks a tree.
(v.) Hence: To strike, pick, thrust against, or dig into, with a pointed instrument; especially, to strike, pick, etc., with repeated quick movements.
(v.) To seize and pick up with the beak, or as with the beak; to bite; to eat; -- often with up.
(v.) To make, by striking with the beak or a pointed instrument; as, to peck a hole in a tree.
(v. i.) To make strokes with the beak, or with a pointed instrument.
(v. i.) To pick up food with the beak; hence, to eat.
(n.) A quick, sharp stroke, as with the beak of a bird or a pointed instrument.
Example Sentences:
(1) The first was a passive avoidance task in which the chicks were allowed to peck at a green training stimulus (a small light-emitting diode, LED) coated in the bitter liquid, methylanthranilate, giving rise to a strong disgust response and consequent avoidance of the green stimulus.
(2) The rate of key pecking in a component was negatively related to the proportion of reinforcers from the alternative (variable-time) source.
(3) No pigeon attacked the target; one pecked the shockplug on its back.
(4) This 'object' function is the summation of the food uptake by one second of pecking and one second of filter feeding.
(5) So strong is this image of Peck that his few honourable attempts at comedy, and his less successful portrayals of the baddie, are often forgotten.
(6) Hens socially dominant in three bird pens had higher liver fat accumulation than hens lower on the peck order but liver fat accumulation for the dominant hens still averaged less than hens housed either two or one per cage.
(7) He tweeted on Wednesday: “I did not pull out of presenting the Rory Peck Awards - they dropped me.” The awards were set up in 1995 in memory of freelance cameraman Rory Peck, who was killed in Moscow in 1993.
(8) Pigeons were trained to peck a key on a multi FR30-FI3' schedule.
(9) Five pigeons pecked for food reinforcers on a concurrent variable-interval one-minute, variable-interval four-minute schedule.
(10) Day-old chicks peck when offered a bright bead; if the bead is coated with the bitter-tasting methylanthranilate (M) they avoid it thereafter.
(11) "You also said we haven't ended up with local radio at the bottom of the pecking order.
(12) The drug initially produced a marked decrease in aggressive behavior but had little or no effect on key pecking.
(13) The results showed that pigeons alternate when frequency-dependent selection is applied to single pecks because alternation is an easy-to-learn stable pattern that satisfies the frequency-dependent condition.
(14) At 6ft 3in tall, the lanky Peck was a pillar of moral rectitude standing up for decency and tolerance.
(15) The effects of three amphetamine analogs were assessed in pigeons key pecking under a multiple 3-min fixed-interval (FI), 30 response fixed-ratio (FR) schedule of food presentation.
(16) Subsequently, over three phases, additions were made during the random-interval 1-minute component as follows: pecks during the component occasionally were punished by timeout presentation (Phase 1), timeouts were presented independently of responding during the component (Phase 2), pecks during the component occasionally were punished by electric-shock presentation (Phase 3).
(17) Trade ministers, much lower down the pecking order, are more sanguine.
(18) Genetic stock by age and beak treatment by age interactions were present for hen-housed production and egg mass, and the interactions appeared to result primarily from increased mortality from cannibalistic pecking with increased age.
(19) In the swinging 1960s, Peck's sober style seemed a little out of place, though he appeared in a couple of flashy Hitchcockian thrillers, Mirage (1965) and Arabesque (1966), and adapted to the new Hollywood as best he could, looking rather bothered as the father of a demon in The Omen (1976).
(20) Pigeons' pecks were conditioned with food reinforcement.