(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles; "the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe"
(psychology) a theory that reduces all mental phenomena to simple elements (sensations and feelings) that form complex ideas by association
(of a mental state) characterized by intense and distorted perceptions and hallucinations and feelings of euphoria or sometimes despair; "a psychedelic experience"
having the vivid colors and bizarre patterns associated with psychedelic states; "a psychedelic painting"
producing distorted sensory perceptions and feelings or altered states of awareness or sometimes states resembling psychosis; "psychedelic drugs like psilocybin and mescaline"
moral soundness; "he expects to find in us the common honesty and integrity of men of business"; "they admired his scrupulous professional integrity"
an undivided or unbroken completeness or totality with nothing wanting; "the integrity of the nervous system is required for normal development"; "he took measures to insure the territorial unity of Croatia"
above or beyond the human or demanding more than human power or endurance; "superhuman beings"; "superhuman strength"; "soldiers driven mad by superhuman misery"
increased pressure in the eyeball due to obstruction of the outflow of aqueous humor; damages the optic disc and impairs vision (sometimes progressing to blindness)
being or characterized by concepts or their formation; "conceptual discussions"; "the schizophrenic loses ability to abstract or do conceptual thinking"; "sex is a notional category, gender is a grammatical category"
happening or arising or located within some limits or especially surface; "internal organs"; "internal mechanism of a toy"; "internal party maneuvering"
occurring within an institution or community; "intragroup squabbling within the corporation"
a seizure (or a type of epilepsy characterized by such seizures) of short duration characterized by momentary unconsciousness and local muscle spasms or twitching