(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.
Structure
Definition:
(n.) The act of building; the practice of erecting buildings; construction.
(n.) Manner of building; form; make; construction.
(n.) Arrangement of parts, of organs, or of constituent particles, in a substance or body; as, the structure of a rock or a mineral; the structure of a sentence.
(n.) Manner of organization; the arrangement of the different tissues or parts of animal and vegetable organisms; as, organic structure, or the structure of animals and plants; cellular structure.
(n.) That which is built; a building; esp., a building of some size or magnificence; an edifice.
Example Sentences:
(1) The findings indicate that there is still a significant incongruence between the value structure of most family practice units and that of their institutions but that many family practice units are beginning to achieve parity of promotion and tenure with other departments in their institutions.
(2) The influence of the various concepts for the induction of lateral structure formation in lipid membranes on integral functional units like ionophores is demonstrated by analysing the single channel current fluctuations of gramicidin in bimolecular lipid membranes.
(3) We have determined the genomic structure of the fosB gene and shown that it consists of 4 exons and 3 introns at positions also found in the c-fos gene.
(4) Structure assignment of the isomeric immonium ions 5 and 6, generated via FAB from N-isobutyl glycine and N-methyl valine, can be achieved by their collision induced dissociation characteristics.
(5) The fine structure of neurofibrillary tangles in the hippocampal gyrus, substantia nigra, pontine nuclei and locus coeruleus of the brain was postmortem studied in a case of progressive supranuclear palsy.
(6) Life expectancy and the infant mortality rate are considered more useful from an operational perspective and for comparisons than is the crude death rate because they are not influenced by age structure.
(7) It has been generally believed that the ligand-binding of steroid hormone receptors triggers an allosteric change in receptor structure, manifested by an increased affinity of the receptor for DNA in vitro and nuclear target elements in vivo, as monitored by nuclear translocation.
(8) Immunocytochemistry was used to visualize cytoskeletal structures and to assay selective disruption of neurofilaments by acrylamide.
(9) The quaternary structure of ribonucleotide reductase of Escherichia coli was investigated, with the use of purified B1 and B2 proteins and bifunctional cross-linking agents.
(10) Structural peculiarities in tubulin polymorphism are considered.
(11) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
(12) It is likely that trunk mobility is necessary to maintain integrity of SI joint and that absence of such mobility compromises SI joint structure in many paraplegics.
(13) Fluorination with [18F]acetylhypofluorite yields 6-[18F]fluoro-L-dopa with 95% radiochemical purity; fluorination of the same substrate with [18F]F2 yields a mixture of all three structural isomers in a ratio of 70:16:14 for 6-, 5-, and 2-fluoro compounds.
(14) But the wounding charge in 2010 has become Brown's creation of a structural hole in the budget, more serious than the cyclical hit which the recession made in tax receipts, at least 4% of GDP.
(15) The aetiological factors concerned in the production of paraumbilical and epigastric hernias have been reviewed along structural--functional lines.
(16) The disassembly of the synthetase complex is consistent with the structural model of a heterotypic multienzyme complex and suggests that the complex formation is due to the specific intermolecular interactions among the synthetases.
(17) In addition to the phase diagrams reported here for these two binary mixtures, a brief theoretical discussion is given of other possible phase diagrams that may be appropriate to other lipid mixtures with particular consideration given to the problem of crystalline phases of different structures and the possible occurrence of second-order phase transitions in these mixtures.
(18) The structures of 1 and 2 were established mainly on the basis of nmr spectroscopic data.
(19) Determination of the primary structure for factor V has provided the basis for examination of structure-function relationships.
(20) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.