What's the difference between levee and lever?

Levee


Definition:

  • (n.) The act of rising.
  • (n.) A morning assembly or reception of visitors, -- in distinction from a soiree, or evening assembly; a matinee; hence, also, any general or somewhat miscellaneous gathering of guests, whether in the daytime or evening; as, the president's levee.
  • (v. t.) To attend the levee or levees of.
  • (n.) An embankment to prevent inundation; as, the levees along the Mississippi; sometimes, the steep bank of a river.
  • (v. t.) To keep within a channel by means of levees; as, to levee a river.

Example Sentences:

  • (1) What Katrina left behind: New Orleans' uneven recovery and unending divisions Read more Ten years on, resentment still lingers about the failure of the federal levee system during hurricane Katrina, the botched response of the Federal Emergency Management Agency (Fema), and the long and difficult process of accessing billions of dollars in grant money for rebuilding, which for some people is not finished.
  • (2) In the case of the Mississippi, however, the flood risks are compounded by bad city planning and a century of trying to squeeze rivers into tighter spaces through the levee system.
  • (3) "The ministerial code has been found to be breached," he said, as if it were like a hurricane battering a levee, a force of nature for which nobody is to blame.
  • (4) The flood-swollen waters still have 1,000 miles to go before they reach the Gulf of Mexico and forecasters warned there was considerable danger further down river in the days ahead, especially if there is more rain or if the levees fail.
  • (5) On a day when the skies were ashen from the smoke of distant wildfires, Chase Hurley kept his eyes trained on the slower-moving disaster at ground level: collapsing levees, buckling irrigation canals, water rising up over bridges and sloshing over roads.
  • (6) Residents in flooded towns have worked desperately to build sandbag levees in the hope of holding back the rising waters.
  • (7) "I think what we are seeing along the Mississippi is all of those things: climate change, bad planning, bad development and inappropriate levees."
  • (8) A levee up to 20ft high would guard part of Staten Island and dunes would be built to strengthen the city's Atlantic shoreline.
  • (9) Gonadotropin leves were studied in 111 postmenopausal women to determine if weight loss and cachexia could similarly affect gonadotropin function.
  • (10) An estimated 80% of New Orleans , much of which lies below sea level, was flooded in the storm and from levee breaches that followed.
  • (11) Red cell phosphoribosylpyrophosphate leve,ls were not changed by the therapy.
  • (12) The system of levees cut off the river from the delta, choking off the sediment needed to shore up the coast.
  • (13) After the evacuation of mole the serum level of these glycoproteins decreased, the leve of hCG-alpha declined more rapidly than hcg.
  • (14) The procedure by which the plans were developed consisted of: 1) conventional larval sampling by dipping along rice field levees that divided each field into pans; 2) counting the number of 2nd through 4th instar larvae observed in two dips taken at each sampling location; and 3) determination of the appropriate statistical parameters from which probability curves, number of samples required, and cumulative larval totals for specific sampling plans could be derived.
  • (15) Apparently and excess of iodide depressed the capacity of perchlorate to influence its concentration in the gland, and thereby the process of iodine organification and of the thyroid hormone secretion maintained at the optimal leve.
  • (16) This dose did not depress to a significant degree the white blood cell count, red blood cell count, hemoglobin leve., hematocrit value, or the peripheral differential blood counts after 14 daily applications.
  • (17) In Study 2, the leve of Process S (at 2400 h prior to an 8-h sleep episode) was varied by studying subjects when they had not napped or had taken 2-h naps beginning at either 1000 or 1900 h. As predicted by the model, SWS varied reliably depending on the level of S at bedrest, as did indices of sleep continuity at night.
  • (18) In June 2004, the corps' project manager, Al Naomi, went before a local agency, the East Jefferson Levee Authority, and requested $2m for "urgent work" that Washington was now unable to pay for.
  • (19) "We have a one-size-fits-all military model that is out of date – building levees – when we should be managing water."
  • (20) In patients treated with antihypertensive drugs the plasma renin leve often is the result of opposing influences.

Lever


Definition:

  • (a.) More agreeable; more pleasing.
  • (adv.) Rather.
  • (n.) A rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied; -- used for transmitting and modifying force and motion. Specif., a bar of metal, wood, or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is of three kinds, according as either the fulcrum F, the weight W, or the power P, respectively, is situated between the other two, as in the figures.
  • (n.) A bar, as a capstan bar, applied to a rotatory piece to turn it.
  • (n.) An arm on a rock shaft, to give motion to the shaft or to obtain motion from it.

Example Sentences:

  • (1) In this experiment animals were trained to lever press in two distinctive contexts.
  • (2) Orientation and lever responding were not functionally related.
  • (3) In older stages, the cervical joints rotate according to geometric and lever arm principles.
  • (4) In EastEnders , the mystery surrounding the identity of Kat's secret squeeze continues amid the grinding of narrative levers and the death rattle of overflogged script-horses.
  • (5) Cats were trained to press a lever for 0.5--1.0 ml of milk reward both in the presence and absence of ambient light.
  • (6) Setting out how Britain would have a lever over the rest of the EU to demand repatriation of UK competences, Cameron said: "What's happening in Europe right now is massive change being driven by the existence of the euro.
  • (7) When lever pressing was established, the 2-kHz signal was presented through a speaker adjacent to the response lever according to a different set of variable intertrial intervals.
  • (8) Officials said the changes to the planning rules will mean it is possible to lever in billions of private sector development in low-cost housing.
  • (9) Rats were allowed to bar press on either of two levers (left and right).
  • (10) Knee flexion is synchronized with ankle dorsiflexion by a synchronizer rod and lever.
  • (11) In order to study the interactions between serotonergic mechanism and electrical stimulation of the mesencephalic central gray substance, rats were trained to lever-press for terminating aversive electric stimuli applied at the Periaqueductal gray and adjoining tectum of the mesencephalon.
  • (12) Rats were trained to press a lever to obtain a brief burst of pulses to the lateral hypothalamus.
  • (13) But its original meaning is the practice of using the levers of the state and of government to get difficult things done that otherwise wouldn't happen.
  • (14) Intact rats and rats bearing lesions of the suprachiasmatic nuclei (SCNX rats) were trained to obtain food by pressing either of two levers located on opposite sides of a cylindrical cage.
  • (15) We found that attenuation of lever-pressing and water intake by raclopride were not more separated in dose than after, for example, haloperidol.
  • (16) Young rats weaned at 16 days were taught to press a lever by shaping at 18 days and trained for 11 days (from 20 to 30 days of age) on a fixed-interval 60-sec schedule, at a rate of 5 half-hour sessions per day.
  • (17) In contrast, the selective norepinephrine uptake inhibitors, desipramine and talsupram, and the selective serotonin uptake inhibitor, citalopram, occasioned averages of only 13 to 19% drug-lever responding.
  • (18) When reinforcement was not available, each lever response produced a 0.5-sec green light on the key.
  • (19) Rats implanted with placebo pellets and given access to morphine reestablished lever pressing, while those given access to isotonic saline extinguished their lever pressing.
  • (20) Levels of acetylcholine were significantly elevated in the telencephalon and diencephalon + mesencephalon of rats killed by near-freezing during conditioned suppression of food-reinforced lever pressing, whereas levels of serotonin, dopamine, and norepinephrine were not altered.