plural of basic reproductive ratio

The ratio of an object's longest dimension to its next-longest dimension. / The ratio of width to height in a flat surface or 2-dimensional abstract construction, such as an image, character, or pixel.

(signal processing) The ratio of maximum permitted frequency deviation, σₘₐₓ to the maximum permitted modulating frequency, fiₘₐₓ.

Of a material in tension or compression, the ratio of the strain in the direction of the applied load to the strain normal to the load. Abbreviated ν.

(statistics) the proportion of cases not in the mode

(physics) the ratio of the angular momentum to the magnetic moment in an atom etc

(geometry) The irrational number (approximately 1.618), usually denoted by the Greek letter φ (phi), which is equal to the sum of its own reciprocal and 1, or, equivalently, is the square root of the sum of itself and 1.

(law) The legal principle or rationale on which a judicial decision is based.

A loop transfer function

(automotive) The ratio of the volume between the cylinder head of an internal combustion engine and the piston before and after the compression stroke