(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.
Mark
Definition:
(n.) A license of reprisals. See Marque.
(n.) An old weight and coin. See Marc.
(n.) The unit of monetary account of the German Empire, equal to 23.8 cents of United States money; the equivalent of one hundred pfennigs. Also, a silver coin of this value.
(n.) A visible sign or impression made or left upon anything; esp., a line, point, stamp, figure, or the like, drawn or impressed, so as to attract the attention and convey some information or intimation; a token; a trace.
(n.) A character or device put on an article of merchandise by the maker to show by whom it was made; a trade-mark.
(n.) A character (usually a cross) made as a substitute for a signature by one who can not write.
(n.) A fixed object serving for guidance, as of a ship, a traveler, a surveyor, etc.; as, a seamark, a landmark.
(n.) A trace, dot, line, imprint, or discoloration, although not regarded as a token or sign; a scratch, scar, stain, etc.; as, this pencil makes a fine mark.
(n.) An evidence of presence, agency, or influence; a significative token; a symptom; a trace; specifically, a permanent impression of one's activity or character.
(n.) That toward which a missile is directed; a thing aimed at; what one seeks to hit or reach.
(n.) Attention, regard, or respect.
(n.) Limit or standard of action or fact; as, to be within the mark; to come up to the mark.
(n.) Badge or sign of honor, rank, or official station.
(n.) Preeminence; high position; as, particians of mark; a fellow of no mark.
(n.) A characteristic or essential attribute; a differential.
(n.) A number or other character used in registring; as, examination marks; a mark for tardiness.
(n.) Image; likeness; hence, those formed in one's image; children; descendants.
(n.) One of the bits of leather or colored bunting which are placed upon a sounding line at intervals of from two to five fathoms. The unmarked fathoms are called "deeps."
(v. t.) To put a mark upon; to affix a significant mark to; to make recognizable by a mark; as, to mark a box or bale of merchandise; to mark clothing.
(v. t.) To be a mark upon; to designate; to indicate; -- used literally and figuratively; as, this monument marks the spot where Wolfe died; his courage and energy marked him for a leader.
(v. t.) To leave a trace, scratch, scar, or other mark, upon, or any evidence of action; as, a pencil marks paper; his hobnails marked the floor.
(v. t.) To keep account of; to enumerate and register; as, to mark the points in a game of billiards or cards.
(v. t.) To notice or observe; to give attention to; to take note of; to remark; to heed; to regard.
(v. i.) To take particular notice; to observe critically; to note; to remark.
Example Sentences:
(1) Herpesviruses such as EBV, HSV, and human herpes virus-6 (HHV-6) have a marked tropism for cells of the immune system and therefore infection by these viruses may result in alterations of immune functions, leading at times to a state of immunosuppression.
(2) Patient plasma samples demonstrated evidence of marked complement activation, with 3-fold elevations of C3a desArg concentrations by the 8th day of therapy.
(3) Following in vitro C activation in NHS by delta IgG, the 40 KD C4d component increased markedly.
(4) However, when cross-linked to anti-CD4 or anti-CD8 antibodies a markedly enhanced proliferation of the corresponding subpopulation is observed.
(5) When chimeric animals were subjected to a lethal challenge of endotoxin, their response was markedly altered by the transferred lymphoid cells.
(6) Increased dietary protein intake led to increased MDA per nephron, increased urinary excretion of MDA, and increased MDA per milligram protein in subtotally nephrectomized animals, and markedly increased the glutathione redox ratio.
(7) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
(8) Surprisingly, the clonal elimination of V beta 6+ cells is preceded by marked expansion of these cells.
(9) Muscle weakness and atrophy were most marked in the distal parts of the legs, especially in the gastrocnemius and soleus muscles, and then spread to the thighs and gluteal muscles.
(10) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
(11) report the complications registered, in particular: lead's displacing 6.2%, run away 0.7%, marked hyperthermya 0.0%, haemorrage 0.4%, wound dehiscence 0.3%, asectic necrosis by decubitus 5%, septic necrosis 0.3%, perforation of the heart 0.2%, pulmonary embolism 0.1%.
(12) Marked enhancement of IFN-gamma production by T cells was seen in the presence of as little as 0.3% thymic DC.
(13) This effect was more marked in breast cancer patients which may explain our earlier finding that women with upper body fat localization are at increased risk for developing breast cancer.
(14) Completeness of isolation of the coronary and systemic circulations was shown by the marked difference in appearance times between the reflex hypotensive responses from catecholamine injections into the isolated coronary circulation and the direct hypertensive response from a similar injection when the circulations were connected as well as by the marked difference between the pressure pulses recorded simultaneously on both sides of the aortic balloon separating the two circulations.4.
(15) A marked overlap of input from the two eyes is an unusual feature for a diprotodont marsupial and has previously been seen only in the feathertail glider.
(16) The erythrocyte sedimentation rate is almost always markedly elevated.
(18) Sixteen patients (27%) manifested anomalies of the urinary tract: 12 had markedly altered kidneys, 8 of which were unilateral and ipsilateral to the diaphragmatic defect.
(19) Her muscle weakness and hyperCKemia markedly improved by corticosteroid therapy, suggesting that the diagnosis was compatible with polymyositis (PM).
(20) The introduction of intravenous, high-dose thrombolytic therapy during a brief period has markedly reduced mortality of patients with acute myocardial infarction.