obscuration (English, noun)
expansion: obscuration (countable and uncountable, plural obscurations)
Senses:
glosses: The state of being obscured.
tags: countable
uncountable
glosses: A unit of measurement used in particular for smoke detectors which respond to absorption of light by smoke, in percent absorption per unit length, e.g. % obs/ft, % obs/m.
tags: countable
uncountable
Forms:
form: obscurations
tags: plural