a mental condition or physical feeling resulting from stimulation of a sense organ or from internal bodily change, as cold or pain. Physiology. the faculty of perception of stimuli. a general feeling not directly attributable to any given stimulus, as discomfort, anxiety, or doubt. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.