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opacus

American

[oh-pey-kuhs] / oʊˈpeɪ kəs /

adjective

Meteorology.

(of a cloud) dense enough to obscure the sun or moon.

Etymology

Origin of opacus

1615–25; < New Latin, Latin opācus; see opaque

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Secundum moenia locus erat frondosis populis opacus, vitibusque sponte natis, tenuis prope aqua defluebat, placide murmurans, ubi sedile et domus Democriti conspiciebatur.

From The Anatomy of Melancholy by Burton, Robert

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023