(n.) A flat, circular plate; as, a disk of metal or paper.
(n.) The circular figure of a celestial body, as seen projected of the heavens.
(n.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
(n.) The whole surface of a leaf.
(n.) The central part of a radiate compound flower, as in sunflower.
(n.) A part of the receptacle enlarged or expanded under, or around, or even on top of, the pistil.
(n.) The anterior surface or oral area of coelenterate animals, as of sea anemones.
(n.) The lower side of the body of some invertebrates, especially when used for locomotion, when it is often called a creeping disk.
(n.) In owls, the space around the eyes.
Example Sentences:
(1) These findings suggest that clonidine transdermal disks lower blood pressure in hypertensive patients, but produce local skin lesions and general side effects.
(2) These observations suggest that the liver secretes disk-shaped lipid bilayer particles which represent both the nascent form of high density lipoproteins and preferred substrate for lecithin-cholesterol acyltransferase.
(3) Opsin becomes incorporated into the disk membrane by a process of membrane expansion and fusion to form the flattened disks of the outer segment.
(4) Somatic and functional antigens of Dictyocaulus filaria were comparatively studied by means of disk electrophoresis.
(5) We performed a prospective study on 68 eyes of 68 patients to compare the vertical cup-disk ratio obtained with the video-ophthalmograph to that obtained with manual analysis of black-and-white stereoscopic photographs.
(6) Visible light activates a large guanosine cyclic 3',5'-phosphate (cGMP)- and phosphodiesterase (PDE)-dependent infrared light-scattering change in suspensions of photoreceptor disk membranes.
(7) Three disks of different sizes (10, 25, and 45 mm in diameter) were attached to the edge of the baresthesiometer, and pressures of 1, 3 and 5 kg were applied to the 10 mm disk, and 1, 3, 5, and 7 kg to the other disks.
(8) The hemolytic characteristics of 14 different polydimethyl-siloxane materials were studied, using a rotating disk device to shear whole human blood for 6000 sec.
(9) These optic disk anomalies occurred bilaterally with some inter- and intra-individual variable expressivity.
(10) This is the first reported case, to the best of my knowledge, of disk neovascularization occurring after intravenously injected, crushed, unfiltered, methylphenidate HCl tablets.
(11) We have investigated the relationship between rhodopsin photochemical function and the retinal rod outer segment (ROS) disk membrane lipid composition using flash photolysis techniques.
(12) We found that the Na-Ca exchanger is distributed throughout all membranes in contact with the extracellular space, including the sarcolemma, the transverse tubules (T-tubules), and the intercalated disks.
(13) The minimal inhibitory concentration of netilmicin determined by the agar dilution method was correlated with the disk diffusion zone of inhibition against 322 clinical isolates.
(14) The initiation step consisting of the binding of RNA with the 36S disk of protein was easily accomplished.
(15) The state of the intervertebral disks, intervertebral joints and cerebrospinal canal in degenerative vertebral diseases was assessed.
(16) It is concluded that although a rapid automated system for antibiotic sensitivity testing is desirable, the conventional disk agar diffusion method is easier to perform, more reliable, and a less expensive procedure for antibiotic sensitivity determination.
(17) The diagnostic accuracy of CT in cases of lumbar disk prolapse was investigated on the basis of a group of 158 of our own patients who were divided into three separate groups.
(18) Disk position was assessed inaccurately in either plane in patients with severe degenerative joint disease.
(19) Based on the morphology and magnetic anisotropy of the rod outer segment, the major phospholipid peak is attributed to the flat part of the disk membranes while the phospholipids of the plasma membrane are thought to contribute only to the minor peak.
(20) QC range for H. Influenzae ATCC 49247 were established using multiple HTM agar and broth base lots, three disk lots for each drug, and a number of test replicates consistent with the National Committee for Clinical Laboratory Standards M23-T guideline.
Nummular
Definition:
(a.) Alt. of Nummulary
Example Sentences:
(1) A total of 113 patients with nummular eruptions of unknown origin were collected over a period of 8 years.
(2) The patient presented unusual skin lesions of nummular eczematous dermatitis, signs of delayed puberty and stunted physical development, together with the typical symptoms involving visceral organs and lungs.
(3) The results obtained in 95 patients with nummular microbic eczema show the part played by epidermal alterations in the development of occupational an iatrogenic contact sensitizations.
(4) Five patients with cerebrovascular hemiplegia developed an endogenous eczema (nummular eczema, pompholyx, allergids, atopic dermatitis).
(5) Twenty-two consecutive patients with nummular psoriasis were treated with a 0.05% clobetasol propionate stick on the right side of the body and with 0.05% clobetasol propionate ointment (Dermovate, Glaxo) on the left according to an intermittent application schedule.
(6) Levodopa administered orally in doses of two to four grams daily for up to eight weeks had no apparent therapeutic effect on psoriatic lesions in eleven patients with severe nummular psoriasis.
(7) The mean time needed to obtain complete remission was, for lichenifications, 2 weeks; pruriginous lichenoid papules, 12 days; chronic hand eczema, 2.5 weeks; nummular eczema, 8 days; perioral eczema, 11 days, and breast eczema, 10 days.
(8) We report a 63-year-old man with violaceous nummular patches on the trunk.
(9) The pathogenesis of the epidermal and cutaneous reactions to a microbic invasion comprises many criteria for the diagnosis of a nummular microbial eczema.
(10) Sera from 16 patients suffering from active psoriasis without arthropathy (2 guttate, 10 nummular, and 4 mixed type) were examined for the presence of circulating immune complexes.
(11) Absolute numbers of CD3+ T lymphocytes and their subpopulations were determined and statistically evaluated in the lesional skin of psoriasis, atopic dermatitis, nummular dermatitis, pityriasis rosea, and lichen planus.
(12) In another patient, with nummular psoriasis, slightly elevated levels of circulating immune complexes were measured by two of the assay systems.
(13) The morphological type of psoriasis (patchy, guttate or nummular) had no influence on the therapeutic result, but the degree of infiltration of the lesions and their location on the lower limbs proved to be a factor of relative resistance.
(14) Nummular keratitis was seen in 31.8% of cases between 8-10 days.
(15) Dermatologists in areas where nail wrapping is becoming more fashionable are advised to be alert to potential cyanoacrylate glue allergies which present as periungual eczema which may be associated with eyelid dermatitis and features of nummular dermatitis particularly over the dorsal hand.
(16) The sera of persons with generalized eczema (Whitfield-type) or with disseminated nummular eczema were examined for complement-activating antibacterial antibodies to test the hypothesis that some eczematous change results from an antibody-mediated cytotoxic reaction.
(17) Dryness of the skin that resulted from leprosy had led to the development of nummular eczema in this case.
(18) There was also a prompt response to once daily treatment with halcinonide in patients with contact dermatitis, eczema of the hands, and more serious cases of eczema nummulare and allergic skin reactions, many of whom had failed to respond to previous topical steroid therapy.
(19) During the first year after thioridazine exposure retinal pigmentation evolves from a granular to a patchy or nummular appearance.
(20) The capillary loops in acute nummular eczema were identical in ultrastructure to those of normal skin.