(v. t.) To rub and tear or mark the surface of with something sharp or ragged; to scrape, roughen, or wound slightly by drawing something pointed or rough across, as the claws, the nails, a pin, or the like.
(v. t.) To write or draw hastily or awkwardly.
(v. t.) To cancel by drawing one or more lines through, as the name of a candidate upon a ballot, or of a horse in a list; hence, to erase; to efface; -- often with out.
(v. t.) To dig or excavate with the claws; as, some animals scratch holes, in which they burrow.
(v. i.) To use the claws or nails in tearing or in digging; to make scratches.
(v. i.) To score, not by skillful play but by some fortunate chance of the game.
(n.) A break in the surface of a thing made by scratching, or by rubbing with anything pointed or rough; a slight wound, mark, furrow, or incision.
(n.) A line across the prize ring; up to which boxers are brought when they join fight; hence, test, trial, or proof of courage; as, to bring to the scratch; to come up to the scratch.
(n.) Minute, but tender and troublesome, excoriations, covered with scabs, upon the heels of horses which have been used where it is very wet or muddy.
(n.) A kind of wig covering only a portion of the head.
(n.) A shot which scores by chance and not as intended by the player; a fluke.
(a.) Made, done, or happening by chance; arranged with little or no preparation; determined by circumstances; haphazard; as, a scratch team; a scratch crew for a boat race; a scratch shot in billiards.
Example Sentences:
(1) To test the hypothesis that EAA agonists are involved in transmission of nociceptive information in the spinal cord, we tested the effect of various opioid, sigma and phencyclidine compounds on the action of NMDA in the tail-flick, hot-plate and biting and scratching nociceptive tests.
(2) Some organization schemes concerning locomotor and scratching rhythmicity generators are considered, such as: two half-centres with reciprocal inhibitory connections and tonic excitatory influences on these half-centres: two half-centres with inhibitory-excitatory connections and tonic excitatory influences on one half-centre; ring structures consisting of more than two functional groups of neurons with excitatory and inhibitory connections between them.
(3) In an interview with the Guardian, James Hansen, the world's pre-eminent climate scientist, said any agreement likely to emerge from the negotiations would be so deeply flawed that it would be better to start again from scratch.
(4) The satisfaction derived from smoking depends not only on the pharmacological effects of nicotine but also the sensory stimulation from smoke inhalation, particularly the tracheal 'scratch'.
(5) The pathogenesis of the prolific mite population is unclear, but either a specific immunologic deficit or the inability to effectively eliminate the mites by scratching is a plausible possibility.
(6) Forty-three percent of dog bites, and 52% of cat bites-scratches were provoked, that is, happened while the victim was interacting with the animal.
(7) If the NHS was being created from scratch, primary and community care would be treated as one service.
(8) The timing of knee extensor activity within the hip cycle is different for each form of the scratch (Robertson et al., 1985); thus, the sign of the reset cannot be predicted from the timing of the stimulus relative to the knee extensor cycle.
(9) We report a patient with cat scratch disease who presented with multiple scattered nodular lesions on the legs.
(10) Application of APV to a midbody segment also reduced the magnitude of temporal summation in the scratch circuit in response to electrical stimuli delivered to the shell at 4- to 5-s intervals.
(11) Windshields, spectacles, contact lenses, lashes, an excessive tear meniscus, intraocular lens scratches, and posterior capsular opacification are possible causes that can be easily identified and treated.
(12) Ventral UVA pre-exposure did not appear to affect dorsal skin irritation as expressed by scratch marks.
(13) A rare vascular proliferation found as a skin lesion in patients suffering from the acquired immunodeficiency syndrome and sometimes referred to as epithelioid angiomatosis is believed to be a manifestation of infection by the cat scratch bacillus or a related organism.
(14) We have made Afghanistan stronger by building up from scratch strong security forces.
(15) Immunoperoxidase staining with an antiserum raised against the cat-scratch disease bacillus stained these organisms in all patients.
(16) licking, scratching, grooming, head and limb movements), a reaction termed immobility.
(17) These data suggest that hindlimb scratching induced by 5-HT agonists may not be centrally mediated but rather may be mediated by a neuronal 5-HT1A receptor localized outside the blood-brain barrier.
(18) In contrast, after weaning they showed a significant increment in the duration of face-washing, head-washing, fur licking and body-scratching.
(19) A strong correlation was found between reduction in scratching and improvement in skin status.
(20) But screens already demonstrated by GT can withstand scratches from concrete.
Striation
Definition:
(n.) The quality or condition of being striated.
(n.) A stria; as, the striations on a shell.
Example Sentences:
(1) We show that over a limited range of high spatial frequencies this noise takes on a striated appearance, with the striations running perpendicular to the true fringe orientation.
(2) Cytoplasmic striations seen by light microscopy and trilamellar inclusions seen by electron microscopy were found in ballooned adrenocortical cells.
(3) In addition the bare central backbone showed transverse striations.
(4) These vacuoles contained one or several typical collagen fibrils and had either an electron-lucent matrix or contained an electron-dense material obscuring the fibrillar outlines and cross-striations.
(5) A new optical-electronic method has been developed to detect striation spacing of single muscle fibers.
(6) Fungiform papillae which had a round depression on the top were distributed sporadically among the filiform papillae, and contained columnar CTC with several plane striations running longitudinally along the lateral surface.
(7) Often juxtaposing sets of striations are not in correct register with respect to one another.
(8) In the Colobinae striations are oriented in a predominantly mesiodistal direction.
(9) Superficial corneal epithelial striations described as fibrillary lines have been documented as a common finding in normal and keratoconic eyes.
(10) A characteristic 67 nm transverse striation produced by the intermixing of tropocollagen and collagen types 1 and 3 is observed.
(11) These masses were classified into three broad categories: centrally necrotic masses with a large predominantly liquefactive center and higher density periphery (29); multilocular, septated masses with distinct linear bands or striations (21); and miscellaneous masses (9).
(12) These transition cells possessed apical granules of variable size as well as prominent basal striations.
(13) Amino acid composition, cross striation banding as observed using electron microscopy, cyanogen bromide peptide patterns in disc electrophoresis gels and resistance of the disulfide regions to pepsin digestion indicated a close similarity to previously described insoluble type III collagen, which was solubilized by limited pepsin digestion.
(14) Rabbits were trained to discriminate between vertical and horizontal striations.
(15) These structures were labelled with a selective antibody and showed regular periodic striation with repeats of approximately 40 nm.
(16) Sometimes, these seemed to be connected with the wall of the intracristal space by fine, electron-dense cross-striations.
(17) In the angiograms, the highly vascular region displays a certain striation which is due to the presence of muscle fiber bundles running between the pathologic vessels.
(18) However, in the clinical setting of acute cholecystitis, the presence of striations suggests gangrenous changes in the gallbladder.
(19) A- and I-band striation positions have been obtained, three-dimensionally reconstructed, and statistically analyzed from the volumes of resting isolated heart cells.
(20) Striation of the cuticle cells was normal, with wearing of their free borders (PL, SEM; fig.