Meaning of superfix

su•per•fix

Pronunciation: (s'pur-fiks"), [key]
— n.
  1. a suprasegmental feature having an identifiable meaning or grammatical function, as the stress pattern that distinguishes the noun record from the verb record or the parallel falling stress patterns of blackbird and highchair, reflecting a parallel relationship between the elements.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.