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subliminal

subliminal In this historical psychology usage, subliminal means below the threshold of sensation or awareness.

In this historical psychology usage, subliminal means below the threshold of sensation or awareness. It contrasts with liminal, at the threshold, and supraliminal, above it.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Limen” (Limen).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “subliminal.” Development preview.

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