adjective SYNONYMY NOTE: perceptible is applied to anything that can be apprehended by the senses but often connotes that
the thing is just barely visible, audible, etc. [a perceptible smell of coffee]; sensible applies to that which can clearly be perceived [a sensible difference in their size]; palpable refers to anything that can be perceived by or as by the sense of touch [a palpable fog]; tangible applies to that which can be grasped, either with the hand or the mind [tangible property, ideas, etc.]; appreciable is used of that which is sufficiently perceptible to be measured, estimated, etc.
or to have significance [an appreciable amount]
that can be perceived
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'perceptible'LL perceptibilis < pp. of L percipere