(n.) A line or surface to which, at every point, a vertical or plumb line is perpendicular; a line or surface which is everywhere parallel to the surface of still water; -- this is the true level, and is a curve or surface in which all points are equally distant from the center of the earth, or rather would be so if the earth were an exact sphere.
(n.) A horizontal line or plane; that is, a straight line or a plane which is tangent to a true level at a given point and hence parallel to the horizon at that point; -- this is the apparent level at the given point.
(n.) An approximately horizontal line or surface at a certain degree of altitude, or distance from the center of the earth; as, to climb from the level of the coast to the level of the plateau and then descend to the level of the valley or of the sea.
(n.) Hence, figuratively, a certain position, rank, standard, degree, quality, character, etc., conceived of as in one of several planes of different elevation.
(n.) A uniform or average height; a normal plane or altitude; a condition conformable to natural law or which will secure a level surface; as, moving fluids seek a level.
(n.) An instrument by which to find a horizontal line, or adjust something with reference to a horizontal line.
(n.) A measurement of the difference of altitude of two points, by means of a level; as, to take a level.
(n.) A horizontal passage, drift, or adit, in a mine.
(a.) Even; flat; having no part higher than another; having, or conforming to, the curvature which belongs to the undisturbed liquid parts of the earth's surface; as, a level field; level ground; the level surface of a pond or lake.
(a.) Coinciding or parallel with the plane of the horizon; horizontal; as, the telescope is now level.
(a.) Even with anything else; of the same height; on the same line or plane; on the same footing; of equal importance; -- followed by with, sometimes by to.
(a.) Straightforward; direct; clear; open.
(a.) Well balanced; even; just; steady; impartial; as, a level head; a level understanding. [Colloq.]
(a.) Of even tone; without rising or falling inflection.
(v. t.) To make level; to make horizontal; to bring to the condition of a level line or surface; hence, to make flat or even; as, to level a road, a walk, or a garden.
(v. t.) To bring to a lower level; to overthrow; to topple down; to reduce to a flat surface; to lower.
(v. t.) To bring to a horizontal position, as a gun; hence, to point in taking aim; to aim; to direct.
(v. t.) Figuratively, to bring to a common level or plane, in respect of rank, condition, character, privilege, etc.; as, to level all the ranks and conditions of men.
(v. t.) To adjust or adapt to a certain level; as, to level remarks to the capacity of children.
(v. i.) To be level; to be on a level with, or on an equality with, something; hence, to accord; to agree; to suit.
(v. i.) To aim a gun, spear, etc., horizontally; hence, to aim or point a weapon in direct line with the mark; fig., to direct the eye, mind, or effort, directly to an object.
Example Sentences:
(1) Cancer patients showed abnormally high plasma free tryptophan levels.
(2) Similar experimental manipulation has yielded in vitro lines established from avian B-cell lymphomas expressing elevated levels of c-myc or v-rel.
(3) Multiple stored energy levels were randomly tested and the percent successful defibrillation was plotted against the stored energy, and the raw data were fit by logistic regression.
(4) Serum levels of both dihydralazine and metabolites were very low and particularly below the detection limit.
(5) Carbon dioxide (CO2) levels, volumes, and temperatures of expired gas were measured from the tracheal and esophageal tubes.
(6) Since fingernail creatinine (Ncr) reflects serum creatinine (Scr) at the time of nail formation, it has been suggested that Ncr level might represent that of Scr around 4 months previously.
(7) Disease stabilisation was associated with prolonged periods of comparatively high plasma levels of drug, which appeared to be determined primarily by reduced drug clearance.
(8) The significance of minor increases in the serum creatinine level must be recognized, so that modifications of drug therapy can be made and correction of possibly life-threatening electrolyte imbalances can be undertaken.
(9) The high amino acid levels in the cells suggest that these cells act as inter-organ transporters and reservoirs of amino acids, they have a different role in their handling and metabolism from those of mammals.
(10) LHRH therapy leads to higher plasma LH levels and a lower FSH in response to an intravenous LHRH test.
(11) On the other hand, the LAP level, identical in preterms and SDB, is lower than in full-term infants but higher than in adults.
(12) BL6 mouse melanoma cells lack detectable H-2Kb and had low levels of expression of H-2Db Ag.
(13) Together these results suggest that IVC may operate as a selective activator of calpain both in the cytosol and at the membrane level; in the latter case in synergism with the activation induced by association of the proteinase to the cell membrane.
(14) Participants (n=165) entering a week-long outpatient education program completed a protocol measuring self-care patterns, glycosylated hemoglobin levels, and emotional well-being.
(15) Measurement of the intraspinal monoamine level revealed a decrease in the intraspinal norepinephrine level in the treated animals.
(16) The level of gadd45 mRNA increased rapidly after X rays at doses as low as 2 Gy.
(17) Irrespective of the type of arthropathy, synovial fluid dialysable hydroxyproline levels correlate with urinary hydroxyproline excretion.
(18) This induction is sensitive to actinomycin D but not to protein synthesis inhibitor puromycin, indicating an effect of estradiol at the transcriptional level, possibly mediated by the estrogen receptor.
(19) Quantitative determinations indicate that the amount of PBG-D mRNA is modulated both by the erythroid nature of the tissue and by cell proliferation, probably at the transcriptional level.
(20) This new observation offers good possibilities to study the metabolism of tryptophan at the cellular level.
Subjacent
Definition:
(a.) Lying under or below.
(a.) Being in a lower situation, though not directly beneath; as, hills and subjacent valleys.
Example Sentences:
(1) Thirteen myoplasties using the sartorius muscle were performed on 12 patients from 1980 to 1985 for "healing problems" in the groin with subjacent synthetic grafts.
(2) The initial exposure to LHRH was also associated with a marked translocation of secretory granules from the central to the outer marginal region of cytoplasm subjacent to the gonadotroph plasmalemma, such that in 'primed' glands 60% of granules were found in this marginal zone compared with 40% (hpg) or 33% (normal) in unstimulated glands.
(3) Fibers in the endometrium and endocervix appeared to form a plexus subjacent to the epithelium and some fibers penetrated the epithelium as an intraepithelial plexus.
(4) During extension, lateral flexion, and rotation of the neck, the cervical transverse process engages to the top of the upper articular process of the subjacent vertebra, thus embodying the locking mechanism which plays an important role in the stabilization of the cervical spine and the protection of the integrity of vertebral arteries, spinal cord, and nerve roots.
(5) Mitotic intimal and mitotic medial cells were frequently present in the aortic wall subjacent to the endothelial defect areas containing interstitial blood components.
(6) With the exception of aggregates of immunoreactivity subjacent to the inner nuclear envelope, the nucleus was not reactive.
(7) In addition to the intrinsic somata and processes, numerous axons in white matter subjacent to AI are immunoreactive for either or both of the two proteins.
(8) Most grains are present over droplets of absorbed fat beginning with those in the endoplasmic reticulum immediately subjacent to the terminal web.
(9) Lipoprotein lipase (LPL, E C 3.1.1.34) is the enzyme responsible for hydrolysis of triacylglycerols in plasma lipoproteins, making the fatty acids available for use by subjacent tissues.
(10) The volume fraction of synthetic organelles in smooth muscle cells from the DIT of both males and females is of a highly significant difference from the volume fraction of synthetic organelles in cells of the subjacent media.
(11) Counts were higher in intraepithelial locations than in the subjacent connective tissue at all stages.
(12) In tangentially fractured specimens, the cleavage plane jumps back and forth from the plasma membrane to a disk-bilayer, thereby giving rise to the known phenomenon of EF-ridges (on the extracellular fracture face) and PF-grooves (in the plasmatic fracture face) which both represent the level of the plasma membrane sur- or subjacent to the aisles between disks.
(13) They utilize the skill of these allied consultants to qualify (by histology) and quantify (by staging) diffuse and mass lesions of the parotid gland (and subjacent parapharyngeal space) in order to evolve an effective surgical, radiation or other treatment plan.
(14) The submucosal veins are located just subjacent to the capillaries of the lamina propria.
(15) Several types of NPY-containing neurons can be distinguished by their laminar location, by the size of their perikarya, and by the size, shape, and pattern of ramification of their processes: 1) layer I small local circuit neurons; 2) layer II granule cells; 3) aspiny stellate cells located in layers II-III and V-VI, with long, slender dendrites; 4) sparsely spiny stellate cells; 5) aspiny stellate cells with long, horizontally oriented dendrites, whose cell body is situated in layer VI; 6) Martinotti cells in areas 9, 7, and 24; and 7) multipolar neurons situated in the white matter subjacent to the cortical gray.
(16) These data reveal a permanent deficit in the HOKR, but not the HVOR, following unilateral floccular lesions and are consistent with the idea that the flocculus contributes to the regulation of the low-velocity eye movements through the inhibitory modulation of the activity of the subjacent vestibular nuclei.
(17) The large, dark cells are present in a superficial band that includes layers II and III, and in a deep band that includes layer VI and the subjacent white matter.
(18) About 24 h after the induction of cold injury, HRP was distributed in the subjacent white matter of the lesion and around the ventricle.
(19) The aorta subjacent to the flap showed, (1) normal intima with no evidence of disruption or thrombus in all animals, (2) in the animals in whom counterpulsation was observed, there appeared to be thinning of the media in the aorta subjacent to the muscle flap, and (3) no evidence of distal emboli.
(20) Most cases of focal osteosclerosis were found in edentulous zones or associated with carious or inadequately restored teeth; however, some were subjacent to apparently sound teeth.