| reflecting m. |
one which utilizes mirrors instead of lenses to form the image.
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| reflection |
1. a turning or bending back; a bending back upon its course. 2. in physics, the turning back of a ray of light, sound, or heat when it strikes against a surface that it does not penetrate. The ray before reflection is known as the incident ray; after reflection, it is the reflected ray. 3. an image produced by this process. 4. a special form of reentry in which an impulse crosses a narrow area of diminished responsiveness to excite distal tissue, pauses long enough for repolarization of proximal tissue, and returns, retracing its pathway and reexciting the same fibers in reverse rather than traversing a circuit. If the returning impulse is strong enough, a seesaw movement of current can result, causing tachyarrhythmias.
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| reflection p. |
the point from which a ray of light is reflected.
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| reflector |
a device for reflecting light or sound.
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| reflex a. |
a relatively fixed action or pattern of response performed as a result of the triggering of a reflex arc and usually without involvement of the higher centers.
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