(n.) A part, or character, performed by an actor in a drama; hence, a part of function taken or assumed by any one; as, he has now taken the role of philanthropist.
Example Sentences:
(1) The role of the family practitioner in antenatal care is discussed.
(2) 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.
(3) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
(4) In this study, the role of psychological make-up was assessed as a risk factor in the etiology of vasospasm in variant angina (VA) using the Cornell Medical Index (CMI).
(5) The role of Ca2+ in cell agglutination may be either to activate the cell-surface dextran receptor or to form specific intercellular Ca2+ bridges.
(6) The role of whole Mycobacteria, mycobacterial cell walls and waxes D as immunostimulants was well established many years ago.
(7) We have investigated a physiological role of endogenous insulin on exocrine pancreatic secretion stimulated by a liquid meal as well as exogenous secretin and cholecystokinin octapeptide (CCK-8) in conscious rats.
(8) The data indicate that ebselen is likely to be useful in the therapy of inflammatory conditions in which reactive oxygen species, such as peroxides, play an aetiological role.
(9) We have examined the insertion of bovine 17 alpha-hydroxylase (P45017 alpha) into the endoplasmic reticulum of COS 1 cells to evaluate the functional role of its hydrophobic amino-terminal sequence and membrane insertion.
(10) Although solely nociresponsive neurons are clearly likely to fill a role in the processing and signalling of pain in the conscious central nervous system, the way in which such useful specificity could be conveyed by multireceptive neurons is difficult to appreciate.
(11) gamma-Aminobutyric acid (GABA) and glutamate release from the treated side was higher than the control value during the first 2-3 h, a result indicating an important role of glial cells in the inactivation of released transmitter.
(12) Although antihistamines are widely used for symptomatic treatment of seasonal (allergic) rhinitis, the role of histamines in the pathogenesis of infectious rhinitis is not clear.
(13) Because many wnt genes are also expressed in the lung, we have examined whether the wnt family member wnt-2 (irp) plays a role in lung development.
(14) As prolongation of the action potential by TEA facilitates preferentially the hormone release evoked by low (ineffective) frequencies, it is suggested that a frequency-dependent broadening of action potentials which reportedly occurs on neurosecretory neurones may play an important role in the frequency-dependent facilitation of hormone release from the rat neurohypophysis.
(15) The role of O2 free radicals in the reduction of sarcolemmal Na+-K+-ATPase, which occurs during reperfusion of ischemic heart, was examined in isolated guinea pig heart using exogenous scavengers of O2 radicals and an inhibitor of xanthine oxidase.
(16) A possible role for mitochondria in myocardial adenosine production is discussed.
(17) Further studies are required to elucidate specific roles of the steroid-induced proteins in the effects of glucocorticoids on HTM and HS cells.
(18) To clarify the functional roles of His40, Glu58, and His92, we analyzed the consequences of several amino acid substitutions (His40Ala, His40Lys, His40Asp, Glu58Ala, Glu58Gln, and His92Gln) on the kinetics of GpC transesterification.
(19) The manufacturers, British Aerospace describe it as a "single-seat, radar equipped, lightweight, multi-role combat aircraft, providing comprehensive air defence and ground attack capability".
(20) The presently available data allow us to draw the following conclusions: 1) G proteins play a mediatory role in the transmission of the signal(s) generated upon receptor occupancy that leads to the observed cytoskeletal changes.
Turn
Definition:
(n.) Convenience; occasion; purpose; exigence; as, this will not serve his turn.
(n.) Incidental or opportune deed or office; occasional act of kindness or malice; as, to do one an ill turn.
(v. t.) To cause to move upon a center, or as if upon a center; to give circular motion to; to cause to revolve; to cause to move round, either partially, wholly, or repeatedly; to make to change position so as to present other sides in given directions; to make to face otherwise; as, to turn a wheel or a spindle; to turn the body or the head.
(v. t.) To cause to present a different side uppermost or outmost; to make the upper side the lower, or the inside to be the outside of; to reverse the position of; as, to turn a box or a board; to turn a coat.
(v. t.) To give another direction, tendency, or inclination to; to direct otherwise; to deflect; to incline differently; -- used both literally and figuratively; as, to turn the eyes to the heavens; to turn a horse from the road, or a ship from her course; to turn the attention to or from something.
(v. t.) To change from a given use or office; to divert, as to another purpose or end; to transfer; to use or employ; to apply; to devote.
(v. t.) To change the form, quality, aspect, or effect of; to alter; to metamorphose; to convert; to transform; -- often with to or into before the word denoting the effect or product of the change; as, to turn a worm into a winged insect; to turn green to blue; to turn prose into verse; to turn a Whig to a Tory, or a Hindu to a Christian; to turn good to evil, and the like.
(v. t.) To form in a lathe; to shape or fashion (anything) by applying a cutting tool to it while revolving; as, to turn the legs of stools or tables; to turn ivory or metal.
(v. t.) Hence, to give form to; to shape; to mold; to put in proper condition; to adapt.
(v. t.) To translate; to construe; as, to turn the Iliad.
(v. t.) To make acid or sour; to ferment; to curdle, etc.: as, to turn cider or wine; electricity turns milk quickly.
(v. t.) To sicken; to nauseate; as, an emetic turns one's stomach.
(v. i.) To move round; to have a circular motion; to revolve entirely, repeatedly, or partially; to change position, so as to face differently; to whirl or wheel round; as, a wheel turns on its axis; a spindle turns on a pivot; a man turns on his heel.
(v. i.) Hence, to revolve as if upon a point of support; to hinge; to depend; as, the decision turns on a single fact.
(v. i.) To result or terminate; to come about; to eventuate; to issue.
(v. i.) To be deflected; to take a different direction or tendency; to be directed otherwise; to be differently applied; to be transferred; as, to turn from the road.
(v. i.) To be changed, altered, or transformed; to become transmuted; also, to become by a change or changes; to grow; as, wood turns to stone; water turns to ice; one color turns to another; to turn Mohammedan.
(v. i.) To undergo the process of turning on a lathe; as, ivory turns well.
(v. i.) To become acid; to sour; -- said of milk, ale, etc.
(v. i.) To become giddy; -- said of the head or brain.
(v. i.) To be nauseated; -- said of the stomach.
(v. i.) To become inclined in the other direction; -- said of scales.
(v. i.) To change from ebb to flow, or from flow to ebb; -- said of the tide.
(v. i.) To bring down the feet of a child in the womb, in order to facilitate delivery.
(v. i.) To invert a type of the same thickness, as temporary substitute for any sort which is exhausted.
(n.) The act of turning; movement or motion about, or as if about, a center or axis; revolution; as, the turn of a wheel.
(n.) Change of direction, course, or tendency; different order, position, or aspect of affairs; alteration; vicissitude; as, the turn of the tide.
(n.) One of the successive portions of a course, or of a series of occurrences, reckoning from change to change; hence, a winding; a bend; a meander.
(n.) A circuitous walk, or a walk to and fro, ending where it began; a short walk; a stroll.
(n.) Successive course; opportunity enjoyed by alternation with another or with others, or in due order; due chance; alternate or incidental occasion; appropriate time.
(n.) Form; cast; shape; manner; fashion; -- used in a literal or figurative sense; hence, form of expression; mode of signifying; as, the turn of thought; a man of a sprightly turn in conversation.
(n.) A change of condition; especially, a sudden or recurring symptom of illness, as a nervous shock, or fainting spell; as, a bad turn.
(n.) A fall off the ladder at the gallows; a hanging; -- so called from the practice of causing the criminal to stand on a ladder which was turned over, so throwing him off, when the signal was given.
(n.) A round of a rope or cord in order to secure it, as about a pin or a cleat.
(n.) A pit sunk in some part of a drift.
(n.) A court of record, held by the sheriff twice a year in every hundred within his county.
(n.) Monthly courses; menses.
(n.) An embellishment or grace (marked thus, /), commonly consisting of the principal note, or that on which the turn is made, with the note above, and the semitone below, the note above being sounded first, the principal note next, and the semitone below last, the three being performed quickly, as a triplet preceding the marked note. The turn may be inverted so as to begin with the lower note, in which case the sign is either placed on end thus /, or drawn thus /.
Example Sentences:
(1) In January 2011, the Nobel peace prize laureate was admitted to a Johannesburg hospital for what officials initially described as tests but what turned out to be an acute respiratory infection .
(2) These are typically runaway processes in which global temperature rises lead to further releases of CO², which in turn brings about more global warming.
(3) Not only do they give employers no reason to turn them into proper jobs, but mini-jobs offer workers little incentive to work more because then they would have to pay tax.
(4) However, as the plan unravels, Professor Marcus's team turn on one another, with painfully (if painfully funny) results.
(5) Given Australia’s number one position as the worst carbon emitter per capita among major western nations it seems hardly surprising that islanders from Fiji, Samoa, Vanuatu and other small island developing states have been turning to Australia with growing exasperation demanding the country demonstrate an appropriate response and responsibility.
(6) Since the first is balked by the obstacle of deficit reduction, emphasis has turned to the second.
(7) He said: "Monetary policy affects the exchange rate – which in turn can offset or reinforce our exposure to rising import prices.
(8) A second Scottish referendum has turned from a highly probable event into an almost inevitable one.
(9) When reformist industrialist Robert Owen set about creating a new community among the workers in his New Lanark cotton-spinning mills at the turn of the nineteenth century, it was called socialism, not corporate social responsibility.
(10) "Especially at a time when they are turning down voluntary requests and securing the positions of senior managers."
(11) Each L subunit contains 127 residues arranged into 10 beta-strands connected by turns.
(12) Local minima of hand speed evident within segments of continuous motion were associated with turn toward the target.
(13) In just a week her life has been turned upside down.
(14) When asked why the streets of London were not heaving with demonstrators protesting against Russia turning Aleppo into the Guernica of our times, Stop the War replied that it had no wish to add to the “jingoism” politicians were whipping up against plucky little Russia .
(15) Berlin said it was not too late to turn back from the abyss, without proposing any decisions or action.
(16) The C-terminal sequence contains an amphiphilic alpha-helix of four turns which lies on the surface of the beta-barrel.
(17) Two years later, Trump tweeted that “Obama’s motto” was: “If I don’t go on taxpayer funded vacations & constantly fundraise then the terrorists win.” The joke, it turns out, is on Trump.
(18) A new bill, to be published this week with the aim of turning it into law by next month, will allow the government to use Britain's low borrowing rates to guarantee the £40bn in infrastructure projects and £10bn for underwriting housing projects.
(19) He campaigned for a no vote and won handsomely, backed by more than 61%, before performing a striking U-turn on Thursday night, re-tabling the same austerity terms he had campaigned to defeat and which the voters rejected.
(20) Seconds later the camera turns away as what sounds like at least 15 gunshots are fired amid bystanders’ screams.