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19 terms

chapter 5 vocab: drugs

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narcotic
means numbness or deadening
analgesics
drugs that relieve pain by depressing the central nervous system.
hallicinogens
drugs that nn cause makred alterations in normal thought processes,perceptions,and moods.
psychological dependence
the conditioned use of a drug caused by underlying emotional needs
physical dependence
physiological need for a drug brought about by its regular use and characterized by withdrawal sickness when administration of the drug is abruptly stopped
depressant
a substance that slows down or depresses the functions of the central nervous system
stimulants
a range of drugs that stimulate or speed up the central nervous system
anabolic steroid
synthetic compounds that are chemically related to the male sex hormone testosterone
screening tests
a preliminary test used to redue the number of possible identites of an unknown substance
confirmation
a single test that specifically identifiies a substance
microcrystalline testt
a test that identifies a specific substance based on the color and shape of crystals formed when the substance is mixed with specific reagents
chromatography
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
fluoresce
to emit visible light when exposed to light of shorter wavelength
ultraviolent
type of radiation that gives us a tan and that causes skin cancer
infrared
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
ions
electrically charged atoms that have gained or lost electrons.
spectrophotometry
An analytical method for identifying a substance by its selective absorption of different wavelengths of light.
monochromatic light
Single wave length light
monochromator
A device for isolating individual wavelengths or frequencies of light.