Definition/Meaning | Word/Phrase |
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measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber | absorptance , absorption coefficient , coefficient of absorption |

(physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body | absorption factor , absorptivity |

conductor having low resistance in parallel with another device to divert a fraction of the current | bypass , electrical shunt , shunt |

fraction of radiant energy that is reflected from a surface | coefficient of reflection , reflectance , reflection factor , reflectivity |

fraction with fractions in the numerator or denominator | complex fraction , compound fraction |

fraction whose numerator is an integer and whose denominator is an integer plus a fraction whose numerator is an integer and whose denominator is an integer plus a fraction and so on | continued fraction |

dot at the left of a decimal fraction | decimal point , percentage point |

proper fraction whose denominator is a power of 10 | decimal , decimal fraction |

divisor of a fraction | denominator |

fraction, number below line in | denominator , divisor |

refund of some fraction of the amount paid | discount , rebate |

fraction, number above line in | dividend , numerator |

fraction, line in | dividing line |

monetary unit that is valued at a fraction (usually one hundredth) of the basic monetary unit | fractional monetary unit , subunit |

water pump that uses the kinetic energy of flowing water to force a small fraction of that water to a reservoir at a higher level | hydraulic pump , hydraulic ram |

fraction whose numerator is larger than the denominator | improper fraction |

dividend of a fraction | numerator |

resistors connected in series across a voltage source; used to obtain a desired fraction of the voltage | potential divider , voltage divider |

fraction with a numerator smaller than the denominator | proper fraction |

number that is integer or quotient of integers, whole number or fraction | rational number |

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