(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.
Nectar
Definition:
(n.) The drink of the gods (as ambrosia was their food); hence, any delicious or inspiring beverage.
(n.) A sweetish secretion of blossoms from which bees make honey.
Example Sentences:
(1) The unusual behavior characterized as "bubbling" was interpreted as either thermoregulation or a nectar concentration.
(2) Gonotrophic-age structure of a population of Aedes provocans (Walker) and nectar sources used by adults were studied for 2 yr at a field site near Belleville, Ontario, Canada.
(3) The EFSA report found the risk to honeybees from drifting pesticide dust was high when fipronil was used as a seed treatment for maize, but did not have the data to assess the risk from its use on sunflowers, or the risk via pollen and nectar, or the risk to other bees and pollinators.
(4) While some worker bees remain at home, others take flight in search of nectar, pollen and other hive essentials.
(5) As one of the gods fled with a pitcher of the nectar across the skies, it spilled on four Indian towns: Allahabad, Nasik, Ujjain and Haridwar.
(6) Twenty-eight exposures were the result of sucking nectar from the flower; the remainder involved ingestion of leaves or flowers.
(7) Salads might feature watermelon, pickled rinds and cashews, while cocktails are little belters: the Del Bac Date ($12), made with Tucson’s malt whisky and local fruit, is purest nectar.
(8) Apparently, these mosquitoes take little or no nectar during the day, and feed soon after the onset of darkness.
(9) The roles require drastically different behaviours, with nurses feeding the larvae and performing royal grooming duties, and foragers navigating great distances and performing complex dance routines to point others in the direction of rich sources of nectar.
(10) This is the first time that ultraviolet absorption in a nectar guide has been interpreted in chemical terms.
(11) alpha-glucosidase activity is elevated in the posterior midgut after feeding in response to the blood meal, whereas activity in the anterior midgut is consistent with a nectar-processing role for this midgut region.
(12) vexans had later peak nectar-feeding times than females.
(13) Levels of DA in the brain of nectar and pollen forager bees, presumed to be among the oldest adults sampled, were found to be significantly higher than in nurses, undertakers or food storers.
(14) Grayanotoxins are known to occur in the honey produced from the nectar of Rhododendron ponticum growing on the mountains of the eastern Black Sea region of Turkey and also in Japan, Nepal, Brazil, and some parts of North America and Europe.
(15) Oilseed rape is likely to be particularly damaging , according to the researchers, because the active compounds of the neonicotinoid pesticides are not just applied to the surface but expressed in the plant’s tissues, meaning that bees can ingest the chemicals in the nectar and pollen of affected crops.
(16) Honeybees, too, employ complex navigational skills to find their way to and from distant sources of nectar and pollen.
(17) During our study, it was observed to feed on only five species of plant and mainly on the nectar-producing parts (flowers and nectaries) of four of these species.
(18) The presence of fructose, as detected by the cold Anthrone test, indicated that both parous and nulliparous flies routinely imbibe nectars as part of their foraging behavior.
(19) A spokesman for Syngenta, which manufactures thiamethoxam, said: “Crop-measured pollen and nectar residues from thiamethoxam seed-treated oilseed rape is typically less than 3ppb.
(20) The distribution and relative frequency of occurrence of gastrointestinal endocrine cells exhibiting immunoreactivity to eleven peptides and one amine were examined immunohistochemically in the gastrointestinal mucosa of the adult honey possum which feeds almost exclusively on nectar and pollen.