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Adjective:
perceptual
pu(r)'sep-ch(oo-)ul
Of or
relating
to the
process
or
faculty
of
perceiving
through
the
senses
"perceptual
stimulus
"
Encyclopedia:
Perceptual
percept
perceptibility
perceptible
perceptibly
perception
perceptive
perceptively
perceptiveness
perceptivity
perceptron
perceptual
perceptual constancy
perceptual experience
perceptuality
perceptually
perch
perchance
percher
Percheron
perching bird
perchlorate