Embryonic Structure
embryo Audio
em·bry·o [ em-bree-oh ]
Definitions related to embryo:
  • Developmental organism from fertilization to 8 weeks of gestation.
    Foundational Model of Anatomy
    University of Washington, 2017
  • The entities of developing ANIMALS in early stages.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (embryonic) Having to do with an embryo, which is an early stage in the development of a plant or animal.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • Embryo, the early developmental stage of an animal while it is in the egg or within the uterus of the mother. In humans the term is applied to the unborn child until the end of the seventh week following conception; from the eighth week the unborn child is called a fetus. A brief treatment of...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
Try this search on: Farlex, Merriam-Webster, Oxford Dictionary, or Wordnik

This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.