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Meaning of deleterious

del•e•te•ri•ous

Pronunciation: (del"i-tēr'ē-us), [key]
— adj.
  1. injurious to health: deleterious gases.
  2. harmful; injurious: deleterious influences.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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