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Meaning of dry rot

dry' rot'

Pronunciation: [key]
    1. a decay of seasoned timber, resulting in its becoming brittle and crumbling to a dry powder, caused by various fungi.
    2. any of various diseases of plants in which the rotted tissues are dry.
  1. any concealed or unsuspected inner decay.

dry-rot

Pronunciation: (drī'rot"), [key]
— -rot•ted, -rot•ting.
  1. to undergo or cause to undergo the action or effects of dry rot.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.