1. Any kind of conscious experience of sensation. 2. The mental perception of a sensory stimulus. 3. A quality of any mental state or mood, whereby it is recognized as pleasurable or the reverse. 4. A bodily sensation that is correlated with a given emotion.

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feel·ing 'fē-liŋ n
1 a) the one of the basic physical senses of which the skin contains the chief end organs and of which the sensations of touch and temperature are characteristic: TOUCH
b) a sensation experienced through this sense
2) an emotional state or reaction <guilt \feelings>
3) the overall quality of one's awareness esp. as measured along a pleasantness-unpleasantness continuum

Medical dictionary. 2011.