Meaning of gnotobiosis

gno•to•bi•o•sis

Pronunciation: (nō"tō-bī-ō'sis), [key]
— n.
  1. an environmental condition in which germfree animals have been inoculated with strains of known microorganisms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.