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in psychoanalytic theory, a primitive defense mechanism in which the self and internal and external objects are divided into parts that are either “all good” or “all bad.” Characteristic of very young children, it is also seen in those with borderline personality disorder and sometimes in those with other personality disorders or psychoses.
In chemistry, the cleavage of a covalent bond, fragmenting the molecule involved.
'splitting'Academia Hair-splitting The division of a morbid condition, lesion, or other entity into smaller subtypes–eg, dividing Laurence-Moon-Biedl-Bardet syndrome into Laurence-Moon and Bardet-Biedl syndromes. Cf 'Lumping' Drug slang A street term for rolling marijuana and cocaine.
chemistry The cleavage of a covalent bond, fragmenting the molecule involved.