Below the threshold of perception or excitation; below the limit or threshold of consciousness. [sub- + L. limen (limin-), threshold]
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sub·lim·i·nal (.)səb-'lim-ən-əl, 'səb- adj
1) inadequate to produce a sensation or a perception
2) existing or functioning below the threshold of consciousness <the \subliminal mind> <\subliminal advertising>
sub·lim·i·nal·ly -ē adv
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adj.
subconscious: beneath the threshold of conscious perception.
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sub·lim·i·nal (səb-limґĭ-nəl) [sub- + liminal] below the limen, or threshold, of sensation.Medical dictionary. 2011.