DECALAGE

Jean Piaget's theory of cognitive development about the invariant order that cognitive developments occur in. See horizontal or vertical decalage.

DACTYLOLOGY

noun. The conveying or concepts by way of signals formed via the fingers.

DARK LIGHT

the perception of light stimulated by the sudden functioning of retinal photoreceptors, that takes place even when there is no light.

DATABASE

noun. 1. a big, systematic gathering of data retained in such a way on a computer that enables recollection of such data. 2. with...

DAYMARE

noun. An event of minor anxiety, stress, or fear, that is alike to a bad dream, but happens at a time when the person...

DEATH INSTINCT

with regard to psychoanalytic theory, an ambition whose objective is the lessening of psychical stress to the smallest potential degree, which is, death. It...

DECARBOXYLASE

The enzyme that catalyses and removes carboxyl groups from compounds.

Latest news