The Commens Dictionary
Quote from ‘The Basis of Pragmaticism. Meditation the First’
…a “virtual x,” where x stands for a common noun, means something which is not an x, but which has, for whatever purpose may be uppermost, the virtue of an x, that is, such properties as make it equivalent to an x.
MS [R] 279:13
‘Virtual’ (pub. 10.03.16-12:24). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from http://www.commens.org/dictionary/entry/quote-basis-pragmaticism-meditation-first.