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  1. Fetus Definition & Meaning - Merriam-Webster

  2. Fetus - Wikipedia

  3. Embryo vs. Fetus: What’s the Difference? - Healthline

  4. Fetal Development: Week-by-Week Stages of Pregnancy - Cleveland Clinic

  5. Fetal development: The 1st trimester - Mayo Clinic

  6. Fetus - Definition, Stages and Development - Biology Dictionary

  7. Fetal development by week: Your baby in the womb - BabyCenter

  8. Fetus | Growth, Development, Nutrition | Britannica

  9. What is the difference between an embryo, a fetus, and a …

  10. Embryo vs. Fetus: How to Tell Them Apart - Verywell Health