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Meaning of mycorrhiza

my•cor•rhi•za

Pronunciation: (mī"ku-rī'zu), [key]
— pl. -zae -zas.
  1. a symbiotic association of the mycelium of a fungus, esp. a basidiomycete, with the roots of certain plants, in which the hyphae form a closely woven mass around the rootlets or penetrate the cells of the root.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.