[ pee-eych-dee ]

abbreviation, noun,plural Ph.D.s
  1. the highest degree, a doctorate, awarded by a graduate school in a field of academic study, usually to a person who has completed at least three years of graduate study and a dissertation approved by a committee of professors.

  2. a person who has been awarded this degree.

Origin of Ph.D.

First recorded in 1870–75; from Latin Philosophiae Doctor

Words Nearby Ph.D. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Ph.D. in a sentence

British Dictionary definitions for PhD


abbreviation for
  1. Doctor of Philosophy: Also: DPhil

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012