sen·tience (sĕn′shəns, -shē-əns)
n.
1. The quality or state of being sentient; consciousness.
2. Feeling as distinguished from perception or thought.
The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
sentience (ˈsɛnʃəns) or sentiency
n
1. the state or quality of being sentient; awareness
2. sense perception not involving intelligence or mental perception; feeling
Collins English Dictionary – Complete and Unabridged © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003
sen•tience (ˈsɛn ʃəns) also sen′tien•cy,
n.
sentient condition or character; capacity for sensation or feeling.
[1830–40]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Thesaurus Legend: Synonyms Related Words Antonyms
Noun 1. sentience - state of elementary or undifferentiated consciousness; "the crash intruded on his awareness"
awareness
consciousness - an alert cognitive state in which you are aware of yourself and your situation; "he lost consciousness"
2. sentience - the faculty through which the external world is apprehended; "in the dark he had to depend on touch and on his senses of smell and hearing"
sensory faculty, sentiency, sense, sensation
faculty, mental faculty, module - one of the inherent cognitive or perceptual powers of the mind
sense modality, sensory system, modality - a particular sense
sensitivity, sensitiveness, sensibility - (physiology) responsiveness to external stimuli; the faculty of sensation; "sensitivity to pain"
3. sentience - the readiness to perceive sensations; elementary or undifferentiated consciousness; "gave sentience to slugs and newts"- Richard Eberhart
animateness, liveness, aliveness - the property of being animated; having animal life as distinguished from plant life
insentience - lacking consciousness or ability to perceive sensations
http://www.thefreedictionary.com/Sentient+being