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Meaning of rice blast

rice' blast"

Pronunciation: [key]
— Plant Pathol. Plant Pathol.
  1. a disease of rice caused by the fungus Pyricularia oryae, characterized by elliptical leaf spots with reddish-brown margins, brownish lesions and neck rot of the fruiting panicles, and stunting of the plant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.