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chapter 5 vocab: drugs
means numbness or deadening
drugs that relieve pain by depressing the central nervous system.
drugs that nn cause makred alterations in normal thought processes,perceptions,and moods.
the conditioned use of a drug caused by underlying emotional needs
physiological need for a drug brought about by its regular use and characterized by withdrawal sickness when administration of the drug is abruptly stopped
a substance that slows down or depresses the functions of the central nervous system
a range of drugs that stimulate or speed up the central nervous system
synthetic compounds that are chemically related to the male sex hormone testosterone
a preliminary test used to redue the number of possible identites of an unknown substance
a single test that specifically identifiies a substance
a test that identifies a specific substance based on the color and shape of crystals formed when the substance is mixed with specific reagents
any of several analytical techniques for separating organic mixtures into their components by attraction to a stationary phase by a propelled by a moving phase
to emit visible light when exposed to light of shorter wavelength
type of radiation that gives us a tan and that causes skin cancer
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
electrically charged atoms that have gained or lost electrons.
An analytical method for identifying a substance by its selective absorption of different wavelengths of light.
Single wave length light
A device for isolating individual wavelengths or frequencies of light.