\ˌpē-ˌāch-ˈdē \

Definition of PhD 

doctor of philosophy

History and Etymology for PhD

New Latin philosophiae doctor

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\ˌpē-ˌāch-ˈdē \

Medical Definition of PhD 

1 : an earned academic degree conferring the rank and title of doctor of philosophy

2 : a person who has a doctor of philosophy

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