opacousness

O1P3A1C3O1U1S1N1E1S1S1

noun

Opacity.

First used 17th c.Scrabble 15
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Meanings

nounopacousness (uncountable)
  1. obsoleteuncountableOpacity.First known use 17th c.

    [T]hat 'tis the flaws that produce this opacousness, may be argued from this, that particles of the same Ammel much thicker if unflaw'd will appear somewhat transparent even to the eye […].

    1665, Robert Hooke, Micrographia, section X

Origin

From opacous + -ness.

Full word history & related roots →
Cite this entry
APA

opacousness. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/opacousness

MLA

“opacousness.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/opacousness. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “opacousness,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/opacousness.

Source: opacousness on Wiktionary, CC BY-SA 4.0.