• Croatian: konjugacija
• French: conjugaison
• Greek: συζυγία (siziyía) , κλίση (klísi)
• Japanese: 活用
• Spanish: conjugación

• Croatian: konjugacija, sprezanje
• Czech: časování
• Dutch: vervoeging
• Finnish: taivuttaminen, taivutus
• French: conjugaison
• Greek: συζυγία (siziyía) , κλίση (klísi)
• Hebrew: הטיה (hat'aia) ,
• Icelandic: sagnbeyging, persónubeyging sagna
• Japanese: 活用
• Spanish: conjugación

Related terms

• conjugate

See also

• declension
• inflection, inflexion

Conjugal redirects here. For the type of prison visit, see conjugal visit.

Conjugation may refer to:

• Grammatical conjugation, the modification of a verb from its basic form.
  • Latin conjugation, Spanish conjugation and the English verb, each with complex conjugation forms.
• Marriage, relationship between two or more individuals.

In mathematics:

• Complex conjugation, the operation which multiplies the imaginary part of a complex number by −1; see also conjugate element (field theory).
• The conjugate transpose of a matrix with complex entries is created by taking the transpose of the matrix and the complex conjugate of each entry.
• A conjugate in algebra is similar to a complex conjugate, but is used to rationalize the denominator of a fraction.
• In group theory, if a is an element of a group, then the map f(x) = axa−1 is called conjugation by a. See inner automorphism, conjugacy class, conjugate closure, and conjugation of isometries in Euclidean space.
• Topological conjugation, which identifies equivalent dynamical systems.
• Conjugate points, in differential geometry.
• Conjugate prior, in probability theory, a family of prior probability distributions.
• Convex conjugate, generalization of the Legendre transformation. Also known as Legendre-Fenchel transformation or Fenchel transformation.
• A Conjugate element in field theory.

In the biosciences:

• In biology, transmission of DNA without fusion of gametes. This includes bacterial conjugation, which takes place without fusion; conjugation in ciliates, which involves fusion of nuclei but not cells; and conjugation in certain algae and fungi, which involves fusion of cells but not filaments.
• In immunology, a conjugate vaccine
• In metabolism, conjugation is a biochemical process to bind a substance to an acid and thereby deactivating its biological activity, making it water-soluble, and facilitating its excretion.

In chemistry:

• a conjugate acid-base pair is one base and one acid which differ from each other by one proton (H+), as defined by the Brønsted-Lowry acid-base theory
• In organic chemistry, a conjugated system is a system of atoms covalently bonded with alternating single and multiple bonds.
• In biochemistry: (see metabolism above)

In physics:

• Conjugate variables (thermodynamics), the internal energy of a system.
• Conjugate quantities, in quantum physics, are observables that are linked by the Heisenberg uncertainty principle, such as position and momentum.

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