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WordNet 3.0Copyright Princeton University
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Short "hint"

adj. - Curving inward.

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Usage examples (34)
  • It flowed in a gentle concave from the road up the mountain, its farther boundary an unbroken line of timber.
  • That surface of the bow which faces the string when drawn into action, that is, the concave arc, is called the belly of the bow.
  • The last three types, called concave lenses, scatter parallel rays so that they do not come to a focus, but diverge widely after passage through the lens.
  • This "concave" image is from the roof of the mosque next to the Taj Mahal in Agra. 50mm, wide open at f/1.4.
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Tutoring comment
  • The "conclave" (private meeting or session) met in a large "concave" (curved like the inside of a bowl) room.
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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.