(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.
Beam
Definition:
(n.) Any large piece of timber or iron long in proportion to its thickness, and prepared for use.
(n.) One of the principal horizontal timbers of a building or ship.
(n.) The width of a vessel; as, one vessel is said to have more beam than another.
(n.) The bar of a balance, from the ends of which the scales are suspended.
(n.) The principal stem or horn of a stag or other deer, which bears the antlers, or branches.
(n.) The pole of a carriage.
(n.) A cylinder of wood, making part of a loom, on which weavers wind the warp before weaving; also, the cylinder on which the cloth is rolled, as it is woven; one being called the fore beam, the other the back beam.
(n.) The straight part or shank of an anchor.
(n.) The main part of a plow, to which the handles and colter are secured, and to the end of which are attached the oxen or horses that draw it.
(n.) A heavy iron lever having an oscillating motion on a central axis, one end of which is connected with the piston rod from which it receives motion, and the other with the crank of the wheel shaft; -- called also working beam or walking beam.
(n.) A ray or collection of parallel rays emitted from the sun or other luminous body; as, a beam of light, or of heat.
(n.) Fig.: A ray; a gleam; as, a beam of comfort.
(n.) One of the long feathers in the wing of a hawk; -- called also beam feather.
(v. t.) To send forth; to emit; -- followed ordinarily by forth; as, to beam forth light.
(v. i.) To emit beams of light.
Example Sentences:
(1) An argon laser beam was used to irradiate the round window in 17 guinea pigs.
(2) Streaming is shown to occur in water in the focused beams produced by a number of medical pulse-echo devices.
(3) 11 patients with a postoperative classification of stage D had additional external beam radiation to the pelvic and paraaortic lymph nodes with shielding of the implanted prostatic region.
(4) The data collection scheme for the scanner uses multiple rotations of a linearly shifted, asymmetric fan beam permitting user-defined variable resolution.
(5) The scatter measurement was made using a standard imaging geometry with both beam stops and an additional x-ray detector placed behind the standard imaging detector.
(6) In an effort to decrease the treatment time for this technique, the flattening filter has been removed from an AECL Therac-6 linear accelerator and the characteristics of the resulting beam have been measured.
(7) Comparative clinical studies on temporomandibular joints (TMJ) between the LEGP and fan beam collimators also confirm the superior image quality obtained with the fan beam collimator.
(8) The special advantage of the UV-beam is that it allow to inactivate selectively of the particular elements of nuclear apparatus of living ciliates is to observe consequences of operation on distant descendants of irradiated cell.
(9) Three-five days after endoscopic laser destruction long-distance open-field gamma-beam therapy was administered to 10 patients and polychemotherapy to 9 of these.
(10) Guidelines for external beam treatment have been set forth in the ASTRO Newsletter.
(11) In work to determine whether X-radiation could be used to induce tumors of the colon in outbred Holtzman rats, a technique was devised so that only the descending colon could be irradiated with a collimated X-ray beam and tumorigenic exposures in the kilo-Roentgen range were delivered.
(12) Nevertheless some technical variations are required, to maintain the typical homogeneity of photon beams.
(13) The RBEs of fast neutron, thermal neutron beams, and neutron capture therapy relative to 60Co gamma-ray were calculated as 2.78, 4.18, and 6.15 at 0.1 surviving fraction, respectively.
(14) Some patients received postoperative external beam irradiation (2000 cGy whole pelvis and an additional 3000 cGy to the parametria, with a midline stepwedge) when deep myometrial invasion was present.
(15) Between 1981 and 1985, 20 patients with malignancy-associated ureteral obstruction (MAUO) were given external beam irradiation with a palliative intent.
(16) Finally, the question of oncogenic effects raised with 193 nm laser beams does not seem to apply to the 308 nm wavelength.
(17) Hence the laser beam acts as a fixation target and measuring beam.
(18) Electron beam therapy is usually employed for the treatment of tumours located at or near the surface of the body, because the electron beam gives a high dose near the surface, but falls off rapidly with increasing depth beyond the level of the 80% depth dose.
(19) By embedding the biopsy in the acrylic resin LR White, unsupported sections of which are stable in the electron beam, light and electron microscopy and immunocytochemistry become feasible on sections from the same block.
(20) Real 60Co beams contain lower energy components; in addition, Awall is defined differently by different authors.