In the psychology context, an existentialist perspective focuses on the study and understanding of human existence, emphasizing individual freedom, choice, and responsibility. Rooted in existential philosophy, existential psychology explores the intrinsic aspects of the human Condition, including the search for meaning, the confrontation with existential angst or dread, and the challenge of facing life's inherent uncertainties and the inevitability of death.

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Exocytosis is defined as the excretion of neurotransmitter through the membrane of a presynaptic terminal and into the synaptic cleft between the presynaptic and postsynaptic neurons

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Exogenous means developed from without. When applied to depression, Exogenous means that depressive symptoms seem to be in reaction to a particular situation or event

exorcism refers to religious ritual that attributes disordered behavior to possession by demons and seeks to treat the individual by driving the demons from the body.

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Deutsch: Exosystem / Español: Exosistema / Português: Exossistema / Français: Exosystème / Italiano: Esosistema /

Exosystem is defined as a social settings that a person may not experience first-hand but that still influence development ; social systems that children and adolescents do not directly experience but that may nonetheless influence their development.

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Expansion means elaborating on a child's expression by adding more words.

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Expansion stage is defined as a stage of pre-speech phonological development immediately prior to the emergence of babbling. Infants at this stage, typically between 16 and 30 weeks, produce a variety of speech sounds but no true syllabic babbling.

Expansions refer to fuller and more detailed versions of what a child has just said provided by an adult or older child

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