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Noun ratio has 1 sense
 ratio  the relative magnitudes of two quantities (usually expressed as a quotient)
_{1} is a kind of magnitude relation, quantitative relation
_{1} has particulars:  margin of profit, profit margin, gross margin; abundance; abundance; albedo, reflective power; aspect ratio; cephalic index, breadth index, cranial index; efficiency; facial index; focal ratio, f number, stop number, speed; frequency, relative frequency; hematocrit, haematocrit, packed cell volume; intelligence quotient, IQ, I.Q.; load factor; loss ratio; Mach number; magnification; mechanical advantage; mileage, fuel consumption rate, gasoline mileage, gas mileage; odds, betting odds; order of magnitude, magnitude; outputtoinput ratio; prevalence; pricetoearnings ratio, P/E ratio; productivity; quotient; refractive index, index of refraction; relative humidity; respiratory quotient; safety factor, factor of safety; signaltonoise ratio, signaltonoise, signal/noise ratio, signal/noise, S/N; stoichiometry; time constant; employee turnover, turnover rate, turnover; loading; eccentricity 
