PhD

abbreviation or noun

variants or Ph.D.
plural PhDs or Ph.D.s
: the academic degree, title, or rank of doctor of philosophy
He was awarded a PhD in economics.
Jane Smith, Ph.D.
also : a person who has earned the academic degree of doctor of philosophy
The Cold Spring Harbor Laboratory Watson School of Biological Sciences graduated its first PhDs (14 of them) in June 2004 … Horace Freeland Judson

Examples of PhD in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Lei has a PhD in Economics from the London School of Economics and founded @Fette.world, a sustainable press on nail brand. Angela Lei, Forbes, 19 Feb. 2025 The diagnostic core of autism comes down to differences in social interaction and communication, James McPartland, PhD, director of the Yale Developmental Disabilities Clinic and the Yale Center for Brain and Mind Health, tells SELF. Cassie Shortsleeve, SELF, 19 Feb. 2025 There, Xu focused his PhD studies on robot autonomous navigation and machine learning — similar to Liang’s focus of postdoctoral research — and was a key member of the visual navigation research project for China’s lunar exploration program. Anniek Bao,dylan Butts, CNBC, 19 Feb. 2025 Carter-Williams, who has a PhD in public health, went through her own health crisis, surviving a heart attack and two strokes due to genetic heart disease. Keyaira Boone, Essence, 19 Feb. 2025 See All Example Sentences for PhD

Word History

Etymology

New Latin philosophiae doctor

First Known Use

1839, in the meaning defined above

Time Traveler
The first known use of PhD was in 1839

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Cite this Entry

“PhD.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/PhD. Accessed 4 Mar. 2025.

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