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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

source of radiation sufficiently distant compared to its length and width that it can be considered as a point

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Usage examples (34)
  • Otherwise it'd look like a point-source instead of a Cone.
  • Fog refracts point-source lights and adds a nice "glow" to the light.
  • The brightness of any point-source illumination diminishes rapidly with distance.
  • Using the maximum aperture produces a natural streaking of light from point-source lights.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.