1. A fertilized human egg, up to 14 days old, that can develop into an embryo; especially one to be implanted by IVF

Derived forms: pre-embryos

• waiflike
• Waikiki
• wail
• wailer
• wailful
• wailing
• Wailing Wall
• wain
• wainscot
• wainscoted
• wainscoting
• wainscotted
• wainscotting
• wainwright
• waist
• waist anchor
• waist pack
• waist-deep
• waist-high
• waist-length
• waistband
• waistcloth
• waistcoat
• waistline
• wait