masking

mask·ing  (mskng)

n.

1. Physiology The concealment or screening of one sensory process or sensation by another.

2. A piece of theatrical scenery used to conceal a part of the stage from the audience.

Thesaurus

Noun	1.	masking - the act of concealing the existence of something by obstructing the view of it; "the cover concealed their guns from enemy aircraft" cover, covering, screening concealing, hiding, concealment - the activity of keeping something secret
	2.	masking - the blocking of one sensation resulting from the presence of another sensation; "he studied auditory masking by pure tones" aesthesis, esthesis, sensation, sense datum, sense experience, sense impression - an unelaborated elementary awareness of stimulation; "a sensation of touch"
	3.	masking - scenery used to block the audience's view of parts of the stage that should not be seen masking piece scenery, scene - the painted structures of a stage set that are intended to suggest a particular locale; "they worked all night painting the scenery"