1. The age of an embryo counting from the time of fertilization
   - fertilization age, gestational age, foetal age [Brit, Cdn], fertilisation age [Brit]

Derived forms: fetal ages

Type of: age

• Chongqing
• choo-choo
• chook
• choose
• choose up
• chooser
• choosey
• choosy
• chop
• chop down
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• chop suey
• chop up
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• chop-suey greens
• chopfallen
• chophouse
• Chopin
• chopine
• chopped
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• chopper
• choppiness