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单词 ratio
释义

ratio


ra·tio

R0053100 (rā′shō, rā′shē-ō′)n. pl. ra·tios 1. Relation in degree or number between two similar things.2. The relative value of silver and gold in a currency system that is bimetallic.3. Mathematics A relationship between two quantities, normally expressed as the quotient of one divided by the other; for example, the ratio of 7 to 4 can be written 7:4 or 7/4. A ratio can often also be expressed as a decimal or percentage.
[Latin ratiō, calculation, from ratus, past participle of rērī, to reckon, consider; see ar- in Indo-European roots.]

ratio

(ˈreɪʃɪˌəʊ) n, pl -tios1. a measure of the relative size of two classes expressible as a proportion: the ratio of boys to girls is 2 to 1. 2. (Mathematics) maths a quotient of two numbers or quantities. See also proportion6[C17: from Latin: a reckoning, from rērī to think; see reason]

ra•tio

(ˈreɪ ʃoʊ, -ʃiˌoʊ)

n., pl. -tios. 1. the relation between two similar magnitudes with respect to the number of times the first contains the second: the ratio of 5 to 2, written 5:2 or 5/2. 2. proportional relation; rate: the ratio between acceptances and rejections. 3. the relative value of gold and silver when both are used as a country's monetary standard. [1630–40; < Latin ratiō reckoning, proportion]

ra·tio

(rā′shō, rā′shē-ō′) A relationship between two quantities, normally expressed as the quotient of one divided by the other. For example, if a box contains six red marbles and four blue marbles, the ratio of red marbles to blue marbles is 6 to 4, also written 6:4. A ratio can also be expressed as a decimal or percentage.

ratio

- From Latin, literally, "reckoning."See also related terms for reckoning.
Thesaurus
Noun1.ratio - the relative magnitudes of two quantities (usually expressed as a quotient)ratio - the relative magnitudes of two quantities (usually expressed as a quotient)gross margin, margin of profit, profit margin - the ratio gross profits divided by net salesmagnitude relation, quantitative relation - a relation between magnitudesabundance - (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per millionabundance - (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes presentalbedo, reflective power - the ratio of reflected to incident lightaspect ratio - the ratio of the width to the height of a tv pictureaverage - (sports) the ratio of successful performances to opportunitiesbreadth index, cephalic index, cranial index - ratio (in percent) of the maximum breadth to the maximum length of a skullefficiency - the ratio of the output to the input of any systemfacial index - the ratio (in percent) of the maximum width to the maximum height of the facef number, focal ratio, stop number, speed - the ratio of the focal length to the diameter of a (camera) lens systemrelative frequency, frequency - the ratio of the number of observations in a statistical category to the total number of observationshaematocrit, hematocrit, packed cell volume - the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocritI.Q., intelligence quotient, IQ - a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)load factor - (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)loss ratio - the ratio of the annual claims paid by an insurance company to the premiums receivedMach number - the ratio of the speed of a moving body to the speed of soundmagnification - the ratio of the size of an image to the size of the objectmechanical advantage - the ratio of the force exerted by a machine to the force applied to itfuel consumption rate, gas mileage, gasoline mileage, mileage - the ratio of the number of miles traveled to the number of gallons of gasoline burnedbetting odds, odds - the ratio by which one better's wager is greater than that of another; "he offered odds of two to one"magnitude, order of magnitude - a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10output-to-input ratio - the output power of a transducer divided by the input powerprevalence - (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the populationP/E ratio, price-to-earnings ratio - (stock market) the price of a stock divided by its earningsproductivity - (economics) the ratio of the quantity and quality of units produced to the labor per unit of timeproportionality - a ratio of two quantities that is constantquotient - the ratio of two quantities to be dividedindex of refraction, refractive index - the ratio of the velocity of light in a vacuum to that in a mediumrelative humidity - the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature; expressed as a percentagerespiratory quotient - the ratio of the volume of carbon dioxide expired to the volume of oxygen consumed by an organism or cell in a given period of timefactor of safety, safety factor - the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary useS/N, signal/noise, signal/noise ratio, signal-to-noise, signal-to-noise ratio - the ratio of signal intensity to noise intensitystoichiometry - (chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)time constant - the ratio of the inductance of a circuit in henries to its resistance in ohmsemployee turnover, turnover, turnover rate - the ratio of the number of workers that had to be replaced in a given time period to the average number of workersloading - the ratio of the gross weight of an airplane to some factor determining its lifteccentricity - (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis; "a circle is an ellipse with zero eccentricity"
2.ratio - the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree; "an inordinate proportion of the book is given over to quotations"; "a dry martini has a large proportion of gin"proportionmagnitude relation, quantitative relation - a relation between magnitudes

ratio

noun proportion, rate, relationship, relation, arrangement, percentage, equation, fraction, correspondence, correlation The adult to child ratio is 1 to 6.
Translations
比率比例

ratio

(ˈreiʃiəu) plural ˈratios noun the amount or proportion of one thing compared to another. There is a ratio of two girls to one boy in this class. 比例,比率 比例,比率

ratio

比率zhCN

IdiomsSeegolden ratio

ratio


ratio.

The ratio of two quantities expressed in terms of the same unit is the fraction that has the first quantity as numerator and the second as denominator. For example, if in a group of 100 people 5 die, the ratio of deaths to the total number in the group is 5/100=1/20=.05. Ratios are indicated also by writing the two values with a colon between them, e.g., the ratio of 4 to 8 can be expressed by 4:8 as well as by 4/8.

Ratio

A relationship in magnitude, quantity, or degree between two or more similar things.

Ratio

 

The ratio of two numbers is the quotient from the division of the first number, by the second. The ratio of two homogeneous magnitudes is the number obtained by measuring the first magnitude when the second is chosen as the unit of measurement. If two magnitudes are measured in the same unit of measurement, their ratio is equal to that of the numbers that measure them.

The ratio of the lengths of two segments may be expressed by a rational or irrational number. In the former case the segments are said to be commensurable, and in the latter incommensurable. Mathematicians of the ancient world had no knowledge of irrational numbers. For them the concept of the ratio of two segments did not reduce to the concept of number. In their conception the geometrical theory of the ratios of magnitudes was not connected with the concept of number and played an independent role. In a sense, it substituted for a theory of real numbers. Indeed, according to Euclid the four segments, a, b, a’, and b’ form the proportion a: b = a’:b’ if for any natural numbers m and n one of the relations ma = nb, ma > nb, ma < nb is satisfied simultaneously with the corresponding relation ma’ = nb’, ma’> nb’, or ma’ < nb’. It follows that when a and b are incommensurable the subdivision of the rational numbers (x = m/n) into two classes according to whether a > xb or a < xb coincides with the subdivision according to whether a’ > xb’ or a’ < xb’ —this is the idea behind the modern theory of Dedekind cuts.

ratio

[′rā·shō] (mathematics) A ratio of two quantities or mathematical objects A and B is their quotient or fraction A / B.

ratio

Maths a quotient of two numbers or quantities

ratio


ratio

 [ra´she-o] (L.) an expression of the quantity of one substance or entity in relation to that of another; the relationship between two quantities expressed as the quotient of one divided by the other.A/D ratio adult versus developmental toxicity ratio; the ratio between the toxic effects of a substance on adults (humans or animals, especially pregnant females) and such effects on developing embryos or fetuses.A-G ratio (albumin-globulin ratio) the ratio of albumin to globulin in blood serum, plasma, cerebrospinal fluid, or urine.arm ratio a figure expressing the relation of the length of the longer arm of a mitotic chromosome to that of the shorter arm.benefit-risk ratio a determination of the potential of a research study for positive effects on patients compared to the risks of doing harm.cardiothoracic ratio on a chest radiograph, the ratio of the transverse diameter of the heart to the internal diameter of the chest at its widest point just above the dome of the diaphragm.grid ratio a ratio comparing the height of lead lines in an x-ray grid to the distance between the lead strips.inspiratory-expiratory ratio the ratio of the inspiratory time to the expiratory time during the breathing cycle. Normally, expiratory time will be longer than inspiratory time; if the inspiratory time is longer than the expiratory time, gas trapping may result.lecithin/sphingomyelin ratio see lecithin-sphingomyelin ratio.risk ratio relative risk.sex ratio the proportion of one sex to the other; by tradition the number of males in a population to the number of females, usually stated as the number of males per 100 females.signal-to-noise ratio the ratio between the amplitude of a signal being measured and that of the noise.urea excretion ratio the ratio of the amount of urea in the urine excreted in one hour to the amount in 100 ml of blood. The normal ratio is 50.zeta sedimentation ratio (ZSR) a measurement comparable to the erythrocyte sedimentation rate, except that it is unaffected by anemia. The packed-cell volume (zetacrit) of a blood specimens is calculated by centrifuging the specimen in a Zetafuge, a specially designed instrument that produces controlled cycles of compaction and dispersion and allows rouleaux to form and sediment rapidly. The zetacrit divided into the true hematocrit gives the zeta sedimentation ratio.

ra·ti·o

(rā'shē-ō), An expression of the relation of one quantity to another (for example, of a proportion or rate).
See also: index (2), quotient.
[L. ratio (ration-) a reckoning, reason, fr. reor, pp. ratus, to reckon, compute]

ratio

Vox populi The value obtained by dividing one quantity by another; a measure of association calculated by dividing one amount by another. See Abortion ratio, A/G ratio, A/P ratio, AT/GC ratio, Benefits-to-cost ratio, Branching ratio, Case-to-infection ratio, Case-fatality ratio, CD4/CD8 ratio, Cross-match/transfusion ratio, Death-to-case ratio, Duty ratio, Effective reproductive ratio, Exposure odds ratio, Flexor/extensor ratio, G:C ratio, HDL/LDL ratio, Helper:Suppressor ratio, HERT ratio, International Normalized ratio, Lecithin/sphingomyelin ratio, Likelihood ratio, Magnetization transfer ratio, Maternal mortality ratio, Medical loss ratio, Myeloid:Erythroid ratio, Nuclear:cytoplasmic ratio, Odds ratio, Packing ratio, Potency ratio, Prevalence ratio, Proportionate mortality ratio, Rate ratio, Signal-to-noise ratio, Reproduction ratio, Risk ratio, Sex ratio, Solubility ratio, Standardized mortality ratio, Thyroid hormone binding ratio, Urea reduction ratio, Waist-to-hip ratio.

ra·ti·o

(rā'shē-ō) An expression of the relation of one quantity to another (e.g., of a proportion or rate).
See also: index (2) , quotient
[L. ratio (ration-) a reckoning, reason, fr. reor, pp. ratus, to reckon, compute]

ra·ti·o

(rā'shē-ō) Expression of relation of one quantity to another (e.g., of a proportion or rate). [L. ratio (ration-) a reckoning, reason, fr. reor, pp. ratus, to reckon, compute]

Patient discussion about ratio

Q. Q. I want to know about urine protein creatine ratio in diagnosing nephrotic syndrome. Please explain interms of unit such as mg/mg or mmol/mg. Normal range, nephrotic range with good referrence.A. Nephrotic syndrome is defines as a damage to the kidneys, in which there is a leak of large amounts of protein (over 3.5 grams of protein / 24 hours urine output) from the blood to the urine. Protein loss causes low protein count in the blood (hypoalbuminemia) and edemas (excess fluid in the interstitial cavity which is between the cells, causes leg swelling most often, and also in the adbomen and around the eyes).

More discussions about ratio

ratio


Ratio

The division of one piece of financial information by another. Financial ratios are very common in fundamental analysis, which investigates the financial health of companies. An example of a financial ratio is the price-earnings ratio, which divides a publicly-traded company's share price by its earnings per share. This and other ratios help analysts determine whether a company's share price properly reflects its performance.

ratio

The relation between two quantities when compared mathematically with one another. For example, the most frequently used ratio among investors is the price-earnings ratio. Financial analysts, investors, and managers use ratios to evaluate many factors such as the attractiveness of a stock or the operating efficiency of a company. Also called financial ratio. See also activity ratio, debt management ratio, liquidity ratio, profitability ratio.

ratio

Related to ratio: percentage, Ratio analysis, accounting ratio, Financial ratio
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ratio

enUS
Related to ratio: percentage, Ratio analysis, accounting ratio, Financial ratio
  • noun

Synonyms for ratio

noun proportion

Synonyms

  • proportion
  • rate
  • relationship
  • relation
  • arrangement
  • percentage
  • equation
  • fraction
  • correspondence
  • correlation

Synonyms for ratio

noun the relative magnitudes of two quantities (usually expressed as a quotient)

Related Words

  • gross margin
  • margin of profit
  • profit margin
  • magnitude relation
  • quantitative relation
  • abundance
  • albedo
  • reflective power
  • aspect ratio
  • average
  • breadth index
  • cephalic index
  • cranial index
  • efficiency
  • facial index
  • f number
  • focal ratio
  • stop number
  • speed
  • relative frequency
  • frequency
  • haematocrit
  • hematocrit
  • packed cell volume
  • I.Q.
  • intelligence quotient
  • IQ
  • load factor
  • loss ratio
  • Mach number
  • magnification
  • mechanical advantage
  • fuel consumption rate
  • gas mileage
  • gasoline mileage
  • mileage
  • betting odds
  • odds
  • magnitude
  • order of magnitude
  • output-to-input ratio
  • prevalence
  • P/E ratio
  • price-to-earnings ratio
  • productivity
  • proportionality
  • quotient
  • index of refraction
  • refractive index
  • relative humidity
  • respiratory quotient
  • factor of safety
  • safety factor
  • S/N
  • signal/noise
  • signal/noise ratio
  • signal-to-noise
  • signal-to-noise ratio
  • stoichiometry
  • time constant
  • employee turnover
  • turnover
  • turnover rate
  • loading
  • eccentricity

noun the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree

Synonyms

  • proportion

Related Words

  • magnitude relation
  • quantitative relation
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