(biology, psychology) A phenomenon in animal species whereby males (and to a lesser extent females) exhibit renewed sexual interest if introduced to new receptive sexual partners, even after cessation of sex with prior but still available sexual partners.

(physics) The effect that occurs when the electron current from a cathode subjected to both illumination and a simultaneous electron bombardment is greater than the sum of the photoelectric current and the secondary emission current.

plural of Dember effect

plural of ganzfeld effect

plural of Fano effect

plural of Purkinje effect

plural of pinch effect

plural of Baldwin effect

(evolutionary theory) The effect whereby an organism's ability to learn new behaviours affects its reproductive success and therefore changes the genetic makeup of its species through natural selection.

The spontaneous formation of an emulsion when water is added to certain anise-flavoured liqueurs and spirits, giving the drink a milky appearance.