What's the difference between flood and overflow?

Flood


Definition:

  • (v. i.) A great flow of water; a body of moving water; the flowing stream, as of a river; especially, a body of water, rising, swelling, and overflowing land not usually thus covered; a deluge; a freshet; an inundation.
  • (v. i.) The flowing in of the tide; the semidiurnal swell or rise of water in the ocean; -- opposed to ebb; as, young flood; high flood.
  • (v. i.) A great flow or stream of any fluid substance; as, a flood of light; a flood of lava; hence, a great quantity widely diffused; an overflowing; a superabundance; as, a flood of bank notes; a flood of paper currency.
  • (v. i.) Menstrual disharge; menses.
  • (v. t.) To overflow; to inundate; to deluge; as, the swollen river flooded the valley.
  • (v. t.) To cause or permit to be inundated; to fill or cover with water or other fluid; as, to flood arable land for irrigation; to fill to excess or to its full capacity; as, to flood a country with a depreciated currency.

Example Sentences:

  • (1) One man has died in storms sweeping across the UK that have brought 100-mile-an-hour winds and led to more than 50 flood warnings being issued with widespread disruption on the road and rail networks in much of southern England and Scotland.
  • (2) Last November he bluntly warned EU chiefs he could, if he wished, “flood Europe” with refugees.
  • (3) During Pakistan's recent floods, Chinese aid totalled $18m; the US gave nearly $700m.
  • (4) During a single reversal trial of two 2-wk experimental periods, teats of all glands of 12 Holstein cows were subjected to a milking routine conducive to large vacuum fluctuations and flooded teat cups.
  • (5) In his interview, Smith accepts that the EA's response to the flooding has not been perfect.
  • (6) These changes led to a flooding of the alveoli with up to 40 times normal protein levels and a greater than fivefold increase in airway antiproteinase.
  • (7) The loss of summer sea ice has led to unusual warming of the Arctic atmosphere, that in turn impacts weather patterns in the northern hemisphere , that can result in persistent extreme weather such as droughts, heatwaves and flooding," she said.
  • (8) It will be protected from rising sea levels by a giant flood wall that environmental experts say could damage the communities further down the coast – and social justice campaigners have called the project a form of “climate apartheid” .
  • (9) As a result, low-lying areas, including Bangladesh, Florida, the Maldives and the Netherlands, will undergo catastrophic flooding, while in Britain large areas of the Norfolk Broads and the Thames estuary could disappear.
  • (10) Facebook Twitter Pinterest Many locals said they had never known the flooding this bad.
  • (11) Yu Xiangzhen, former Red Guard Photograph: Dan Chung for the Guardian Almost half a century on, it floods back: the hope, the zeal, the carefree autumn days riding the rails with fellow teenagers.
  • (12) "And secondly, there will also be help with sand bags, which could help prevent further flooding."
  • (13) Allen's team has used the new technique to work out whether global warming worsened the UK floods in autumn 2000, which inundated 10,000 properties, disrupted power supplies and led to train services being cancelled, motorways closed and 11,000 people evacuated from their homes - at a total cost of £1bn.
  • (14) Her home in nearby Burrowbridge just about escaped flooding but she spends four days a week doing volunteer work for those who were not so fortunate.
  • (15) The data discussed in this article were gathered through use of a retrospective cohort survey five years following a major flood in the Wyoming Valley of Pennsylvania.
  • (16) The solicitor did a search, they went through the parish records and local histories, they got a sworn statement from the vendors: in the 150-plus years since it was built, the farm had never flooded.
  • (17) The current floods in Australia have the potential to affect prices for commodities such as sugar and cane growers are warning of production problems for up to three years.
  • (18) Source: Reuters Dirty old river If the notion of an Englishman’s castle as his home is being challenged on the Levels, where scores of properties flooded, the bursting of the Thames from its banks a few hundred yards from the royal castle of Windsor has raised the issue to a new height.
  • (19) The malaria threat is part of a wider health emergency, with more than 20 million people affected by the floods struggling to cope as the winter approaches.
  • (20) The £180m a year scheme is to be paid for by a £10.50 levy on all home insurance, from homeowners who are not at elevated risk of flooding as well as those who are.

Overflow


Definition:

  • (v. t.) To flow over; to cover woth, or as with, water or other fluid; to spread over; to inundate; to overwhelm.
  • (v. t.) To flow over the brim of; to fill more than full.
  • (v. i.) To run over the bounds.
  • (v. i.) To be superabundant; to abound.
  • (n.) A flowing over, as of water or other fluid; an inundation.
  • (n.) That which flows over; a superfluous portion; a superabundance.
  • (n.) An outlet for the escape of surplus liquid.

Example Sentences:

  • (1) Corticosterone (4 x 10(-5) M) did not alter the stimulation-evoked 3H-overflow at 1-30 Hz.
  • (2) Bilateral electromyographic recordings from the biceps brachii and brachialis demonstrated that the amount of excitation overflow in the nonactive limb is between 10 percent and 20 percent of the maximal intensity of activity measured in the exercised limb.
  • (3) Overflow curves in both regions could be described with similar kinetic parameters except for the Vmax, which in the nucleus accumbens was only 60% of that measured in the caudate-putamen.
  • (4) The effects of alpha-adrenoceptor agonists and antagonists on the electrically (slices) or potassium-evoked (synaptosomes) tritium overflow were studied.
  • (5) No difference was found for the inhibition by serotonin and the facilitation by metitepine of the evoked overflow and for the metitepine-induced shift of the concentration-response curve for serotonin to the right.
  • (6) However, higher doses of diltiazem (60 microM) reduced the tritium overflow elicited by RNS or Vt but enhanced that caused by KCl.
  • (7) The alpha 2-adrenoceptor agonist clonidine inhibited, whereas the alpha 2-adrenoceptor antagonist rauwolscine facilitated the stimulated overflow of [3H]NA.
  • (8) In contrast, in synaptosomes superfused with Ca(2+)-free Krebs-Henseleit solution containing 15 mM K+ throughout, ethanol did not affect the tritium overflow evoked by 2 min introduction of 75 microM Ca2+ into the superfusion fluid.
  • (9) Increased formation of hydroxyl free radicals (.OH) reflected by .OH adduct of salicylate in brain dialysate was demonstrated during the sustained (more than 2 hours) dopamine overflow elicited by 75 nmol of 1-methyl-4-phenyldihydropyridine (MPDP+) and 1-methyl-4-phenylpyridinium (MPP+) in the rat striatum.
  • (10) At 10 min there was an associated transient minor increase in NA overflow but at 20 and 30 min the overflow of NA, elevated as a result of anoxic perfusion, returned to pre-anoxic levels on the re-introduction of substrate and oxygen.
  • (11) Cocaine (3 x 10(-6) M) enhanced the 3H-overflow slightly at 1-30 Hz.
  • (12) The ratio between stimulation-evoked 3H-overflow and spontaneous 3H-outflow was the same for both amines at 3 Hz, while the ratio was higher for 3H-NA at 10 Hz.
  • (13) In vitro, yohimbine increased K+-stimulated overflow of endogenous NA in a dose-dependent fashion.
  • (14) In perfused mesenteric vasculatures from spontaneously hypertensive rats (SHR) and normotensive Wistar kyoto rats (WKY), the effects of captopril on the vascular responsiveness and norepinephrine overflow from the adrenergic nerve endings were examined.
  • (15) Ethanol inhibited the NMDA-evoked tritium overflow in a concentration-dependent manner.
  • (16) Noradrenaline overflow from and the potassium content of circumflex territory venous effluent was unchanged.
  • (17) N-methyl-D-aspartate (50-2000 microM) produced a concentration-dependent increase in [3H]norepinephrine overflow from cortical and hippocampal slices with no significant alteration of the response following chronic ethanol treatment.
  • (18) Exocytotic release: Electrical stimulation of the left stellate ganglion (12 Hz; 1 min) evoked a calcium-dependent overflow of noradrenaline and NPY, that was accompanied by a minor and prolonged increase in DOPEG overflow.
  • (19) Overflow was detected using chronoamperometry with electrochemically pretreated, Nafion-coated carbon fiber microelectrodes.
  • (20) Surrey’s fast-growing population, overflowing out of London, needs 13,000 new school places.