| aberration |
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noun
- The act of wandering; deviation, especially from truth or moral rectitude, from the natural state, or from a type.
Aberrations from theory - Burke
- A partial alienation of reason.
Whims, which at first are the aberrations of a single brain, pass with heat into epidemic form - I. Taylor
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(astronomy) A small periodical change of position in the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer.
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(context, optics) The convergence to different focus, foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus.
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(physiology) The passage of blood or other fluid into parts not appropriate for it.
- The producing of an unintended effect by the glancing of an instrument, as when a shot intended for A glances and strikes B.
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(context, zoology, botany) atypical development or structure
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| accelerator |
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nounOften used adjectivally
- One who, or that which, accelerates.
- A device for causing acceleration.
- A substance which speeds up chemical reactions.
- accelerator pedal.
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| ambrotype |
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noun
- an early type of photograph in which a glass negative appears positive when displayed on a black background
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