doub - egg
- double aortic arch
- double blind method
- double blind study
- double blind test
- double bond
- double cervix
- double coat
- double contrast gastrography
- double dewclaw
- double displacement
- double displacement reaction
- double distilled water
- double face
- double fold
- double head
- double helix
- double hemophilia
- double infection
- double kidney
- double mating
