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Meaning of demarcative

de•mar•ca•tive

Pronunciation: (di-mär'kā-tiv, dē'mär-kā"-), [key]
— adj. Ling.
  1. (of a phonological feature) serving to indicate the beginning or end of each successive word in an utterance, as word-initial stress in Hungarian or penultimate stress in Polish.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.