the property of being selective (selective) tending to select; characterized by careful choice; "an exceptionally quick and selective reader"- John Mason Brown Functional sel [..]

A measure of the ability of a receiver to discriminate between a wanted signal on one frequency and unwanted signals on other frequencies.

The selectivity (ap) is the ratio of the amount of a desired product P obtained and the amount of a key reactant converted.

This is a measure of the difference in etch rate of the target film relative to the photoresist mask etch rate or the etch rate of the substrate under the target film. It is typically expressed as the ratio of the target film etch rate to the mask or substrate etch rate. Higher selectivity is always desirable. High selectivity in an etch process wi [..]

Selectivity is a measure of the narrowness of a band pass filter. The greater the selectivity, the narrower (or more selective) the filter.

The property of a tuned circuit that discriminates between signal voltages of different frequencies.

(n) the property of being selective

A college’s selectivity is the percentage of applications that receive offers of admission. Selectivity measures the difficulty of getting in to the college.

The discrimination shown by a reagent in competitive attack on two or more substrates or on two or more positions in the same substrate. It is quantitatively expressed by ratios of rate constants of the competing reactions, or by the decadic logarithms of such ratios. See also isoselective relationship, partial rate factor, regioselectivity, select [..]

The ability of a receiver to select the desired signal and reject unwanted signals. The ability of a receiver to discriminate against signals using a different carrier frequency than the one that has [..]