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assistant foreman |
Noun
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a member of a work gang who supervises the other workers |
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assessor |
Noun
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an official who evaluates property for the purpose of taxing it |
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animal stuffer |
Noun
|
a craftsman who stuffs and mounts the skins of animals for display |
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arborist |
Noun
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a specialist in treating damaged trees |
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attempter |
Noun
|
one who tries |
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arriviste |
Noun
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a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class |
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arouser |
Noun
|
someone who rouses others from sleep |
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autocrat |
Noun
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a cruel and oppressive dictator |
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animal scientist |
Noun
|
a specialist in the branch of biology dealing with animals |
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attestor |
Noun
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(law) a person who attests to the genuineness of a document or signature by adding their own signature |
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attestator |
Noun
|
(law) a person who attests to the genuineness of a document or signature by adding their own signature |
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adult female |
Noun
|
an adult female person (as opposed to a man) |
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aftereffect |
Noun
|
any result that follows its cause after an interval |
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aftereffect |
Noun
|
a delayed effect of a drug or therapy |
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aberration |
Noun
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an optical phenomenon resulting from the failure of a lens or mirror to produce a good image |
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aberration |
Noun
|
a disorder in one's mental state |
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aberration |
Noun
|
a state or condition markedly different from the norm |
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abiogenesis |
Noun
|
a hypothetical organic phenomenon by which living organisms are created from nonliving matter |
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autogenesis |
Noun
|
a hypothetical organic phenomenon by which living organisms are created from nonliving matter |
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autogeny |
Noun
|
a hypothetical organic phenomenon by which living organisms are created from nonliving matter |
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absorption band |
Noun
|
a dark band in the spectrum of white light that has been transmitted through a substance that exhibits absorption at selective wavelengths |
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absorption spectrum |
Noun
|
the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths |
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actinic radiation |
Noun
|
electromagnetic radiation that can produce photochemical reactions |
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actinic ray |
Noun
|
electromagnetic radiation that can produce photochemical reactions |
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action spectrum |
Noun
|
the efficiency with which electromagnetic radiation produces a photochemical reaction plotted as a function of the wavelength of the radiation |
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activation energy |
Noun
|
the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur |
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aerodynamic force |
Noun
|
forces acting on airfoils in motion relative to the air (or other gaseous fluids) |
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aerodynamic lift |
Noun
|
the component of the aerodynamic forces acting on an airfoil that opposes gravity |
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allotropy |
Noun
|
the phenomenon of an element existing in two or more physical forms |
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allotropism |
Noun
|
the phenomenon of an element existing in two or more physical forms |
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atmospheric pressure |
Noun
|
the pressure exerted by the atmosphere |
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air pressure |
Noun
|
the pressure exerted by the atmosphere |
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arterial pressure |
Noun
|
the pressure of the circulating blood on the arteries |
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air pocket |
Noun
|
a local region of low pressure or descending air that causes a plane to lose height suddenly |
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airstream |
Noun
|
the flow of air that is driven backwards by an aircraft propeller |
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airstream |
Noun
|
a relatively well-defined prevailing wind |
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alluvial fan |
Noun
|
a fan-shaped deposit where a fast flowing stream flattens out |
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alluvial cone |
Noun
|
a fan-shaped deposit where a fast flowing stream flattens out |
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alpha radiation |
Noun
|
the radiation of alpha particles during radioactive decay |
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alpha ray |
Noun
|
the radiation of alpha particles during radioactive decay |
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alpha rhythm |
Noun
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the normal brainwave in the electroencephalogram of a person who is awake but relaxed |
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alluviation |
Noun
|
the phenomenon of sediment or gravel accumulating |
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abrasion |
Noun
|
the wearing down of rock particles by friction due to water or wind or ice |
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abrasion |
Noun
|
erosion by friction |
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abrasion |
Noun
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an abraded area where the skin is torn or worn off |
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alpha wave |
Noun
|
the normal brainwave in the electroencephalogram of a person who is awake but relaxed |
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alternating current |
Noun
|
an electric current that reverses direction sinusoidally |
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adhesive friction |
Noun
|
the friction between a body and the surface on which it moves (as between an automobile tire and the road) |
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AC |
Noun
|
an electric current that reverses direction sinusoidally |
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alternating electric current |
Noun
|
an electric current that reverses direction sinusoidally |