Ph.D.

/ˈpiːˌeɪ̯t͡ʃˈdiː/

noun

Doctor of Philosophy, a terminal research degree, the highest of academic degrees conferred by a college or university.

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Meanings

nounPh.D. (plural Ph.D's or Ph.D.'s or Ph.D.s)

plural Ph.D's · plural Ph.D.'s · plural Ph.D.s · alternative Ph. D. · alternative Ph.D · alternative PhD

  1. Doctor of Philosophy, a terminal research degree, the highest of academic degrees conferred by a college or university.

    Ph.D’s will go to Kirk G. Rasmussen and Val Hicks.

    1971 May 27, “24 Local Students Among ‘U’ Graduates”, in The Daily Herald, 98th year, number 214, Provo, Utah, page 6
    1 more example

    The shortage of holders of Ph.D’s in business school subjects has grown so severe in recent years that a panel was set up in 1980 by the American Assembly of Collegiate Schools of Business to study the problem.[…]However, it has already led to modification of accrediting standards such as the suggested use of nonbusiness Ph.D’s with doctorates in psychology, mathematics and economics.[…]Still another question raised in the report centered on how to encourage more educational institutions to turn out more Ph.D.’s in business.[…]He suggests a national contest for undergraduates to encourage them to work for Ph.D.’s in accounting.

    1982 August 20, “Business schools take action to alleviate teacher shortages”, in Southern Illinoisan, volume 90, number 195, Carbondale, Ill., page A-4
  2. informalA person who holds a Ph.D. degree.

    The uncertainty of the job market has a new meaning for Ph.D’s these days: Prospects Highly Depressing.

    1971 January 14, “Ph.D’s Finding Job Prospects Depressing”, in The Pensacola News, Pensacola, Fla.
    3 more examples

    There are 12 Ph.D’s in the Concordia faculty of 62, according to Dr. P. A. Zimmerman, President, with others nearing the completion of doctorate requirements.

    1961 February 26, “Doctorates Are Received by Six”, in Sunday Journal and Star, 94th year, number 9, Lincoln, Neb., page 3B

    He also directs a post-doctoral program in behavioral medicine in which Ph.D’s receive training for very special kinds of treatment.

    1988 September 1, Cecilia Bush, “Flying high, firmly grounded”, in The Catholic Advance, volume CXXII, number 34, Wichita, Kan., page 1, columns 1–2

    Growing up the daughter of two Ph.D.s in geology, young Lucy Chronic was more likely to hear discussions of plate tectonics than the prospects of the local ball team's chance of winning the pennant.

    2004, Lucy Chronic, Halka Chronic, Pages of Stone, 2nd edition, The Mountaineers Books, →ISBN, end material: About the Authors, page 174

    Synonyms: D.Phil.

Synonyms & antonyms

nounA person who holds a Ph.D. degree.

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More synonyms by meaning

nouna doctorate usually based on at least 3 years graduate study and a dissertation; the highest degree awarded graduate study

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Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. New LatinPh.D.
  2. EnglishPh.D.

Borrowed from New Latin Ph.D., an abbreviation of Philosophiae Doctor (“Doctor of Philosophy”).

Full word history & related roots →
Cite this entry
APA

Ph.D.. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Ph.D.

MLA

“Ph.D..” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Ph.D.. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “Ph.D.,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Ph.D..

Source: Ph.D. on Wiktionary, CC BY-SA 4.0.