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Meaning of in vitro fertilization

in vi'tro fertiliza'tion

Pronunciation: [key]
  1. a specialized technique by which an ovum, esp. a human one, is fertilized by sperm outside the body, with the resulting embryo later implanted in the uterus for gestation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.