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conjugation

American  
[kon-juh-gey-shuhn] / ˌkɒn dʒəˈgeɪ ʃən /

noun

  • conjugations
    plural
  1. Grammar.

    1. the inflection of verbs.

    2. the whole set of inflected forms of a verb or the recital or display thereof in a fixed order.

      The conjugation of the Latin verb amo begins amō, amas, amat.

    3. a class of verbs having similar sets of inflected forms.

      the Latin second conjugation.

  2. an act of joining.

    a conjugation of related ideas.

  3. the state of being joined together; union; conjunction.

  4. Biology.

    1. the reproductive process in ciliate protozoans in which two organisms of different mating types exchange nuclear material through a temporary area of fusion.

    2. temporary union or permanent fusion as a form of sexual reproduction in certain algae and fungi, the male gametes of one organism uniting with female gametes of the other.

    3. a temporary union of two bacteria, in Escherichia and related groups, in which genetic material is transferred by migration of a plasmid, either solitary or as part of a chromosome, from one bacterium, the donor, to the other, the recipient; sometimes also including the transfer of resistance to antibiotics.


conjugation British  
/ ˌkɒndʒʊˈɡeɪʃən /

noun

  1. grammar

    1. inflection of a verb for person, number, tense, voice, mood, etc

    2. the complete set of the inflections of a given verb

  2. a joining, union, or conjunction

  3. a type of sexual reproduction in ciliate protozoans involving the temporary union of two individuals and the subsequent migration and fusion of the gametic nuclei

  4. (in bacteria) the direct transfer of DNA between two cells that are temporarily joined

  5. the union of gametes, esp isogametes, as in some algae and fungi

  6. the pairing of chromosomes in the early phase of a meiotic division

  7. chem the existence of alternating double or triple bonds in a chemical compound, with consequent electron delocalization over part of the molecule

"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

conjugation Scientific  
/ kŏn′jə-gāshən /
  1. A type of sexual reproduction in single-celled organisms, such as bacteria and some algae and fungi, in which two organisms or cells from the same species join together to exchange genetic material before undergoing cell division.

  2. The fusion of two gametes to form a zygote, as in some algae and fungi.


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of conjugation

1400–50; late Middle English conjugacion (< Anglo-French ) < Late Latin conjugātiōn- (stem of conjugātiō ), equivalent to conjugāt ( us ) ( see conjugate) + -iōn- -ion

Vocabulary lists containing conjugation

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Sperm conjugation can be compared to a rowing team moving in a coordinated way.

From Science Daily Aug. 6, 2026

The repeated appearance and disappearance of sperm conjugation is one of the study's most notable findings.

From Science Daily Aug. 6, 2026

He’d explain I’d gotten the conjugation wrong and I’d quietly Google what that meant.

From Slate Apr. 12, 2026

Even the mystery she’s trying to unravel depends on correctly parsing the meaning of syntax and conjugation.

From Salon Jan. 18, 2026

I had learned eighty-five Vietnamese phrases over the last seven days, as well as a great deal of verb conjugation.

From "Counting by 7s" by Holly Goldberg Sloan

"If anyone asks if I can say something in Spanish, I just bosh out some verb conjugations," Raducanu joked.

From BBC Aug. 24, 2025

Throughout, she plays with various conjugations of the word “say” — “What’d he say?”

From Los Angeles Times May 3, 2022

Some Native American languages employ a single, albeit very long, word to express an idea that would take English a full-length sentence, while others have complicated noun conjugations not unlike Latin.

From Slate May 12, 2020

Verb conjugations and Early Man mysteries, Random equations and changing world histories, Lunch trays with tater tots, limp chicken wings: These were a few of my least favorite things.

From Washington Post Mar. 1, 2018

That evening, I was working on Shona verb conjugations when my father arrived with news.

From "I Will Always Write Back" by Caitlin Alifirenka and Martin Ganda

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