(superl.) Having an acid or sharp, biting taste, like vinegar, and the juices of most unripe fruits; acid; tart.
(superl.) Changed, as by keeping, so as to be acid, rancid, or musty, turned.
(superl.) Disagreeable; unpleasant; hence; cross; crabbed; peevish; morose; as, a man of a sour temper; a sour reply.
(superl.) Afflictive; painful.
(superl.) Cold and unproductive; as, sour land; a sour marsh.
(n.) A sour or acid substance; whatever produces a painful effect.
(v. t.) To cause to become sour; to cause to turn from sweet to sour; as, exposure to the air sours many substances.
(v. t.) To make cold and unproductive, as soil.
(v. t.) To make unhappy, uneasy, or less agreeable.
(v. t.) To cause or permit to become harsh or unkindly.
(v. t.) To macerate, and render fit for plaster or mortar; as, to sour lime for business purposes.
(v. i.) To become sour; to turn from sweet to sour; as, milk soon sours in hot weather; a kind temper sometimes sours in adversity.
Example Sentences:
(1) The sensitivity of the taste system to the various qualities was, in decreasing order, salty, sweet, sour, and bitter.
(2) The parotid saliva of the caries-rampant group showed a significantly higher level of anodemigrating proteins, predominantly isoamylases, and a significantly lower level of cathode-migrating proteins than that of the caries-resistant group in both paraffin-stimulated and sour lemon-stimulated salivary flows.
(3) But the cocktails take centre stage and are like drinkable pieces of art – try the margarita or the pisco sour.
(4) The munching, and some data crunching, produced firm statistical findings ("The flavour cowy was correlated with age and sourness, but was not correlated to any other flavours or tastes").
(5) A shame such a landmark achievement was soured by Allam refusing to talk to the local council over a potential stadium expansion and trying to change the club’s name to Hull Tigers, which many fans vehemently oppose.
(6) Admittedly, there has been a bit of sour grapes in the English response to the success of Dempsey et al, and no doubt we will be treading those grapes into wine and drinking ourselves into oblivion if Team USA get much further – they are, as today's typically excitable NY Daily News front page informs us, now just "four wins from glory" .
(7) Kaesong, which facilitated nearly $2bn a year in cross-border trade, had been the last joint project left as relations between the two Koreas soured over the past five years.
(8) The UK remains one of the most diligent enforcers of convention rights, but it appears to have soured into one of the least appreciative national constituencies.
(9) Before the adenosine test, the perception of sourness was tested similarly with six concentrations of citric acid (1-100 mM).
(10) Sour taste stimuli (weak acids) decreased outward K+ currents and slightly reduced inward currents; bitter taste stimuli (quinine) reduced inward currents to a greater extent than outward currents.
(11) If i remember correctly, a third of the milk was turned sour, a Russian delicacy'.
(12) Instead, the different taste qualities--sweet, sour, salty, bitter--are subserved by different mechanisms.
(13) "They are taking a mixed strategy, which I would call the sweet and sour approach," Peter Beck, research fellow at Stanford University and a specialist on Korean affairs, told Reuters.
(14) On average, monosodium glutamate and seltzer, which mongrel dogs do not normally encounter in their diets, produced lower gastric acid secretion and pancreatic polypeptide release than sweet, sour, salty, bitter, and meaty tastes.
(15) Ruth Joseph and Sarah Nathan's crumbly little almond and lemon tarts are the perfect example of its charms, to my mind – not too sweet, not too sour, just intensely, deliciously zesty.
(16) Behavior of Staphylococcus aureus strains 100-A, 196-E, 254, 473, 505, and 521 in sweet (18 to 80% milk fat) and neutralized sour cream was studied.
(17) "That was for the players and their families," said Benítez, the implication being why should he risk souring the atmosphere by simply joining in?
(18) If the maximum investment choice is not taken, and NHS performance turns sour in future years, Stevens will be able to say, “I told you so”.
(19) They worked together at Porto, Chelsea and Internazionale but the relationship has soured.
(20) Suu Kyi's relationship with the generals has reportedly turned sour again In her tireless efforts to secure cooperation from the military, Suu Kyi has repeatedly expressed her appreciation, respect and “genuine” affection for the Tatmadaw (feudal military), which her father founded under Japan’s fascist patronage in December 1942, much to the dismay of many minorities who have borne the brunt of the organisation’s ruthless policies.
Sulfur
Definition:
Example Sentences:
(1) Manometric studies with resting cells obtained by growth on each of these sulfur sources yielded net oxygen uptake for all substrates except sulfite and dithionate.
(2) Typically the iron-iron axis (gz) of the binuclear iron-sulfur clusters is in the membrane plane.
(3) Our study suggests that a major part of the renal antimineralocorticoid activity of spironolactone may be attributable to minor sulfur-containing metabolites or their precursors having a high renal clearance that affords access to their site of activity via the renal tubular fluid.
(4) Ferredoxin reductase (Fd-reductase) supplies reducing equivalents obtained from NADPH to mitochondrial cytochrome P450 enzymes via the small iron-sulfur protein ferredoxin.
(5) The loss of enzyme activity in sulfur-rhodanese does not involve cysteinyl residues but can be correlated with the modification of guanidino groups, notably that of Arg-186, the side chain of which may play a role in substrate binding.
(6) In two patients with extensive marrow necrosis, the diagnosis of marrow necrosis was established by morphologic and radioisotopic studies, and the extent of involvement was accurately assessed by marrow scanning with technetium Tc 99m sulfur colloid while the patients were still alive.
(7) It was presumed that thymohydroquinone is excreted as ethereal sulfuric acid conjugate in man.
(8) Also purple sulfur bacteria lowered BOD levels as demonstrated by the growth of T. floridana in sterilized sewage.
(9) An equivalent maximum growth response of rats fed L-methionine or N-acetyl-L-methionine was obtained when the total dietary sulfur amino acids compromised 0.36-0.41% of the diet.
(10) Histopathological evaluations showed that sulfuric acid particles alone did not cause inflammatory responses in centriacinar units of rat lung parenchyma (expressed in terms of percent lesion area) but did cause significant damage (cell killing followed by a wave of cell replication) in nasal respiratory epithelium, as measured by uptake of tritiated thymidine in the DNA of replicating cells.
(11) Ac-MPS of the hyaluronic acid type prevail in the ground substance of the myxoid and fibroblastic mesenchyma, while the substances containing sulfuric groups predominate in the tissue matrix exhibiting fibrogenic tendencies.
(12) Previous work demonstrated a differential decrease in iron-sulfur centers A, B and X which indicated that center X serves as a branch point for parallel electron flow through centers A and B (Golbeck, J.H.
(13) Our observation leads to the suggestion that, in vivo, either rhodanese is maintained in its more stable sulfur-substituted form or cellular compartmentalization prevents inactivation by nitrite.
(14) In contrast, the (Rp)-isomers, which have an equatorial exocyclic sulfur atom, bound to the enzyme without stimulation of its activity.
(15) A strong shoulder was observed at 2481.7 eV on the low-energy side of the sulfate absorption edge, deriving from a novel type of sulfur having a slightly lower oxidation state than sulfate sulfur.
(16) Long-term treatment with furosemide (up to 13 months) caused transient changes in the elemental content of the pancreatic acinar cells: a decrease in chloride and sulfur, and an increase in phosphorus, potassium and magnesium.
(17) The iron-sulfur proteins of the green photosynthetic bacterium Chlorobium have been characterized by oxidation-reduction potentiometry in conjunction with low-temperature electron paramagnetic resonance spectroscopy.
(18) The reaction is based on the reduction of sulfur dioxide at a dropping mercury electrode.
(19) Proton induced X-ray emission (PIXE) analyses were performed on single hair fibers in triplicate from 103 individuals in order to determine sulfur, zinc, calcium, and chlorine content.
(20) In a survey of the proteins from human hair, a genetic electrophoretic variant has been observed in the high-sulfur protein region.