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General: The extent to which something is covered.
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Astro.: The total area of the sky observed in a particular
→ sky survey. See also
→ fractional sky coverage.
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The area within which a radio signal sent by a transmitter is received reliably .
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In film making, the shooting of a scene from various views and using
various exposures.
Etymology (EN): From → cover + -age a suffix forming abstract
nouns.
Etymology (PE): → cover.