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Vinony

flatness

noun

  1. property of a three-dimensional object having one dimension significantly less than the other two
  2. quality of a surface without significant curvature or inclination
L320725 on Wikidata ↗

Wiktionary

Pronunciation: /ˈflætnəs/

noun

Etymology: From Middle English flatnesse, equivalent to flat + -ness.

  1. The state of being flat

    “The flatness of the landscape facilitates views right across the Firth of Forth to Fife, before the railway begins to pierce the Edinburgh suburbs.”

  2. The state of being two-dimensional; planar : planarity
  3. The state of being bland : dullness
  4. Mattness, the quality of a painted surface which scatters or absorbs the light falling on it, so as to be substantially free from gloss or sheen
  5. Lack of bouquet and freshness of a wine, through too much aeration or infection with film yeasts
  6. slim-tailedness or platykurtosis.