Substance D
the primary illegal substance of A Scanner Darkly; a mind-altering drug that eventually causes a split between the two halves of the brain
scramble suit
a technological innovation that allows its wearer complete anonymity, projecting a different appearance every nanosecond for obscurity and altering vocal emissions
cephalochromascope
a device Arctor and his friends use for relaxation; appears to be some sort of fancy music/audio player with various extra features, often used in tandem with drugs
aphids
tiny bugs, often seen in large numbers
appendages
limbs, parts added on to or hanging off from a primary body
barbituates
drugs that affect the body by depressing the central nervous system
psychedelics
drugs that cause colorful, kaleidoscopic hallucinations
unadulterated
pure, unfiltered
paranoia
a feeling of perpetual anxiety and fear about something, extreme neuroticism
punitive
having to do with punishment; retributive
occipital lobe
the part of the brain nearest the back; the main processor of visual images
subdued
held down, repressed
nausea
an unpleasant feeling that indicates the possibility of vomiting
techological voiceprint
the sum of a person's vocal identifiers; one of the many things obscured by the scramble suit
multifaceted
having several different functions
