Apperception :: Apperception (n.) The mind's perception of itself as the subject or actor in its own states; perception that reflects upon itself; sometimes, intensified or energetic perception..
Imperceptibility :: Imperceptibility (n.) The state or quality of being imperceptible.
Imperceptible :: Imperceptible (a.) Not perceptible; not to be apprehended or cognized by the souses; not discernible by the mind; not easily apprehended.
Perceptible :: Perceptible (a.) Capable of being perceived; cognizable; discernible; perceivable.
Perception :: Perception (n.) The act of perceiving; cognizance by the senses or intellect; apperhension by the bodily organs, or by the mind, of what is presented to them; discernment; apperhension; cognition..
Perception :: Perception (n.) The faculty of perceiving; the faculty, or peculiar part, of man's constitution by which he has knowledge through the medium or instrumentality of the bodily organs; the act of apperhending material objects or qualities through the senses; -- distinguished from conception..
Perception :: Perception (n.) The quality, state, or capability, of being affected by something external; sensation; sensibility..