ratio : Idioms & Phrases

Index

aspect ratio

  • noun the ratio of the width to the height of a tv picture
WordNet

case-to-infection ratio

  • noun the number of cases of a disease divided by the number of infections with the agent that causes the disease
    case-to-infection proportion.
WordNet

Compound ratio

  • (Math.), the product of two or more ratios; thus ab:cd is a ratio compounded of the simple ratios a:c and b:d.
Webster 1913

Compound ratio, Duplicate ratio, Inverse ratio, etc.

  • See under Compound, Duplicate, etc.
Webster 1913

Duple ratio

  • (Math.), that in which the antecedent term is double the consequent, as of 2 to 1, 8 to 4, etc.
Webster 1913

Duplicate proportion ∨ ratio

  • (Math.), the proportion or ratio of squares. Thus, in geometrical proportion, the first term to the third is said to be in a duplicate ratio of the first to the second, or as its square is to the square of the second. Thus, in 2, 4, 8, 16, the ratio of 2 to 8 is a duplicate of that of 2 to 4, or as the square of 2 is to the square of 4.
Webster 1913

Exponent of a ratio

  • the quotient arising when the antecedent is divided by the consequent; thus, 6 is the exponent of the ratio of 30 to 5. R.
Webster 1913

Extreme and mean ratio

  • (Geom.), the relation of a line and its segments when the line is so divided that the whole is to the greater segment is to the less.
Webster 1913

focal ratio

  • noun the ratio of the focal length to the diameter of a (camera) lens system
    f number; stop number; speed.
WordNet

Geometrical progression, proportion, ratio

  • . See under Progression, Proportion and Ratio.
Webster 1913

Inverse, ∨ Reciprocal, ratio

  • (Math.), the ratio of the reciprocals of two quantities.
Webster 1913

loss ratio

  • noun the ratio of the annual claims paid by an insurance company to the premiums received
WordNet

output-to-input ratio

  • noun the output power of a transducer divided by the input power
WordNet

p/e ratio

  • noun (stock market) the price of a stock divided by its earnings
    P/E ratio.
WordNet

price-to-earnings ratio

  • noun (stock market) the price of a stock divided by its earnings
    P/E ratio.
WordNet

Prime and ultimate ratio

  • . (Math.). See Ultimate.
Webster 1913

Ratio of a geometrical progression

  • the constant quantity by which each term is multiplied to produce the succeeding one.
Webster 1913

Reciprocal ratio

  • (Math.), the ratio between the reciprocals of two quantities; as, the reciprocal ratio of 4 to 9 is that of 1⁄4 to 1⁄9.
Webster 1913

Sesquialteral ratio

  • (Math.), the ratio of one and a half to one; thus, 9 and 6 are in a sequialteral ratio.
Webster 1913

Sesquiduplicate ratio

  • (Math.), the ratio of two and a half to one, or one in which the greater term contains the lesser twice and a half, as that of 50 to 20.
Webster 1913

signal-to-noise ratio

  • noun the ratio of signal intensity to noise intensity
    signal-to-noise; signal-to-noise ratio; signal/noise; S/N.
WordNet

signal/noise ratio

  • noun the ratio of signal intensity to noise intensity
    signal-to-noise; signal-to-noise ratio; signal/noise; S/N.
WordNet

Subduple ratio

  • the ratio of 1 to 2: thus, 3:6 is a subduple ratio, as 6:3 is a duple ratio.
Webster 1913

Subduplicate ratio

  • the ratio of the square roots, or the square root of a ratio; thus, the subduplicate ratio of a to b is *a to *b, or *a⁄b.
Webster 1913

Subtriplicate ratio

  • the ratio of the cube root; thus, the subtriplicate ratio of a to b is ∛a to ∛b, or ∛a⁄b.
Webster 1913

The anharmonic function or ratio

  • of four points abcd on a straight line is the quantity (ac/ad):(bc/bd), where the segments are to regarded as plus or minus, according to the order of the letters.
Webster 1913

Triple ratio

  • (Math.), a ratio which is equal to 3.
Webster 1913

Triplicate ratio

  • (Math.), the ratio of the cubes of two quantities; thus, the triplicate ratio of a to b is a3: b3.
Webster 1913

Ultima ratio

  • L.], the last reason or argument; the last resort.
Webster 1913

Ultimate ratio

  • (Math.), the limiting value of a ratio, or that toward which a series tends, and which it does not pass.
Webster 1913