(chemistry) an experimentally observable effect of the transmission of charge through a chain of atoms in a molecule by electrostatic induction

(genetics, evolutionary theory) A reduction in genetic diversity resulting when a population is descended from a small number of colonising ancestors.

A phenomenon whereby a change in the behavior of a subject being studied is an effect of the change itself or the fact of being observed rather than the nature of the change in question.

(psychology) The effect of the subjectivity of perception on recollection, by which observers of an event are able to produce substantially different but equally plausible accounts of it.

The effect of seeing hallucinatory images of a repetitive activity done earlier.

An auditory phenomenon in which pulsed microwave frequencies generate clicking sounds directly inside the human head.

The increased ability to remember the first items in a list

(idiomatic) used to indicate a paraphrase or the chance of an error in the details of reported speech.

(marine) the hydrodynamic phenomenon by which a vessel moving quickly through shallow water creates an area of lowered pressure that causes the ship to be closer to the seabed than would otherwise be expected.

(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.