manifesting or characteristic of life; "a vital, living organism"; "vital signs"
performing an essential function in the living body; "vital organs"; "blood and other vital fluids"; "the loss of vital heat in shock"; "a vital spot"; "life-giving love and praise"
(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"
disease or disability resulting from conditions of employment (usually from long exposure to a noxious substance or from continuous repetition of certain acts)