Dictionary
sub•lim•i•nal
Pronunciation: (sub-lim'u-nl), [key]—
adj. Psychol.
existing or operating below the threshold of consciousness; being or employing stimuli insufficiently intense to produce a discrete sensation but often being or designed to be intense enough to influence the mental processes or the behavior of the individual:
a subliminal stimulus; subliminal advertising. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.