Sentence:  I see an inkstand on the table: that is a <WSD>percept</WSD>. Moving my head, I get a different <WSD>percept</WSD> of the inkstand. 
Meaning of the word marked with <WSD> tags:  A perceived object as it exists in the mind of someone perceiving it; the mental impression that is the result of perceiving something. (from 19th c.)