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Meaning of macromutant

mac•ro•mu•tant

Pronunciation: (mak"rō-myt'nt), [key]
— adj.
  1. undergoing macromutation.
  2. resulting from macromutation.
—n.
  1. a new type of organism resulting from macromutation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.