Definitions for oryza sativa
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Princeton's WordNet
cultivated rice, Oryza sativa(noun)
yields the staple food of 50 percent of world's population
U.S. National Library of Medicine
Oryza sativa
Annual cereal grass of the family POACEAE and its edible starchy grain, rice, which is the staple food of roughly one-half of the world's population.
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