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complex definition

Overview

This page has 27 definitions of complex with English translations in 4 languages. Complex is an adjective, noun and verb. Examples of how to use complex in a sentence are shown. Also define these 48 related words and terms: composite, simple, easy, straightforward, complicated, mathematics, real number, imaginary, square root, complex number, mathematical analysis, range, complex function, algebra, coefficient, field, polynomial, algebraic variety, geometry, curve, network, interconnected, system, military-industrial complex, collection, building, purpose, university, military, thunderstorms, wildfire, taxonomy, psychoanalysis, mental, condition, repress, emotion, excessive, psychological, chemistry, atom, molecule, irreducible, irrep, abelian, complicate, complex, and senzill.

See also: complèx

English complex definition

Etymology

From French complexe, from Latin complexus, past participle of complectī (to entwine, encircle, compass, infold), from com- (together) and plectere (to weave, braid). See complect. Doublet of complexus.

Pronunciation

Adjective
  • (UK) IPA(key): /kəmˈplɛks/, /ˈkɒm.plɛks/
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  • (US) enPR: kəmplĕks, kŏm'plĕks; IPA(key): /kəmˈplɛks/, /ˈkɑmplɛks/
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Noun

Adjective

complex (comparative complexer or more complex, superlative complexest or most complex)

  1. Made up of multiple parts; composite; not simple.
    a complex being; a complex idea
  2. Not simple, easy, or straightforward; complicated.
    • 1837, William Whewell, History of the Inductive Sciences
      When the actual motions of the heavens are calculated in the best possible way, the process is complex and difficult.
  3. (mathematics, of a number) Having the form a + bi, where a and b are real numbers and i is (by definition) the imaginary square root of −1.
    function of a complex variable
  4. (mathematics, mathematical analysis, of a function) Whose range is a subset of the complex numbers.
  5. (mathematics, algebra) Whose coefficients are complex numbers; defined over the field of complex numbers.
    complex polynomial
    • Algebra definition
      A system for computation using letters or other symbols to represent numbers, with rules for manipulating these symbols. (1 of 8 algebra definitions)
  6. (geometry) A curve, polygon or other figure that crosses or intersects itself.

Synonyms

Antonyms

Derived terms

Related terms

Translations

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Dictionary:Entry layout § Translations.

Noun

complex (plural complexes)

  1. A problem. (clarification of this definition is needed)
  2. A network of interconnected systems.
    • Interconnected definition
      intertwined; connected at multiple points or levels
  3. A collection of buildings with a common purpose, such as a university or military base.
    • 2021 February 6, The Courier-Mail, page 4, column 1:
      A man at the complex said he had seen the often heavily made-up girls coming and going in luxury vehicles.
    • University definition
      Institution of higher education (typically accepting students from the age of about 17 or 18, depending on country, but in some exceptional cases able to take younger students) where subjects are studied and researched in depth and degrees are offered.
  4. An assemblage of related things; a collection.
    • 1698, Robert South, Twelve Sermons upon Several Subjects and Occasions:
      This parable of the wedding supper comprehends in it the whole complex of all the blessings and privileges exhibited by the gospel.
    1. An organized cluster of thunderstorms.
    2. A cluster of wildfires burning in the same vicinity.
      The fire complex began as two separate fires.
      • 2020 September 16, “Millions of acres burn in California as weather improves in Northwest.”, in The New York Times, retrieved September 16, 2020:
        As of early Wednesday, there were at least 25 major wildfires and fire complexes, the term given to multiple fires in a single geographic area, burning in California, Christine McMorrow, a Cal Fire information officer, said.
    3. (taxonomy) A group of closely related species, often distinguished only with difficulty by traditional morphological methods.
      • 2015 November 26, Mosè Manni et al., “Relevant genetic differentiation among Brazilian populations of Anastrepha fraterculus (Diptera, Tephritidae)”, in ZooKeys, volume 540, DOI:10.3897/zookeys.540.6713:
        Since then, a good deal of research has documented and concluded that the nominal species A. fraterculus actually comprises an unresolved complex of cryptic species.
  5. (psychoanalysis) An abnormal mental condition caused by repressed emotions.
    • Psychoanalysis definition
      A family of theories and methods within the field of psychotherapy that work to find connections among patients' unconscious mental processes
  6. (informal, by extension) A vehement, often excessive psychological dislike or fear of a particular thing.
    Jim has a real complex about working for a woman boss.
  7. (chemistry) A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.
    • 2013 September-October, Katie L. Burke, “In the News”, in American Scientist:
      Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: [] . The evolutionary precursor of photosynthesis is still under debate, and a new study sheds light. The critical component of the photosynthetic system is the “water-oxidizing complex”, made up of manganese atoms and a calcium atom.
    • Chemistry definition
      The branch of natural science that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alterations in the constitution of their molecules. (1 of 3 chemistry definitions)
  8. (mathematics) A complex number.
    • 1996, Barry Simon, Representations of Finite and Compact Groups, page 50:
      The interesting aspect here is that U3 is irreducible, even though all irreps over the complexes are one-dimensional because ℤ4 is abelian.
    • Abelian definition
      Having a commutative defining operation.

Derived terms

Translations

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Dictionary:Entry layout § Translations.

Verb

complex (third-person singular simple present complexes, present participle complexing, simple past and past participle complexed)

  1. (chemistry, intransitive) To form a complex with another substance
  2. (transitive) To complicate.

Translations

Further reading


Catalan complex definition

Etymology

From Latin complexus.

Pronunciation

Adjective

complex (feminine complexa, masculine plural complexos, feminine plural complexes)

  1. complex
    Antonyms: simple, senzill

Derived terms

Related terms

Noun

complex m (plural complexos)

  1. complex (clarification of this definition is needed)

Further reading


Dutch complex definition

Etymology

Borrowed from French complexe or German komplex, from Latin complexus.

Pronunciation

Adjective

complex (comparative complexer, superlative meest complex or complext)

  1. complex (composite)
  2. complex (complicated)
  3. (mathematics) complex (containing an imaginary component or involving imaginary numbers)

Inflection

Inflection of complex
uninflected complex
inflected complexe
comparative complexer
positive comparative superlative
predicative/adverbial complex complexer het complext
het complexte
indefinite m./f. sing. complexe complexere complexte
n. sing. complex complexer complexte
plural complexe complexere complexte
definite complexe complexere complexte
partitive complex complexers

Derived terms

Descendants

Noun

complex n (plural complexen, diminutive complexje n)

  1. complex (collection of buildings or facilities with a common purpose)
  2. (psychoanalysis) complex (abnormal mental state caused by repression)

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Related terms

Descendants


Romanian complex definition

Etymology

From French complexe, from Latin complexus.

Pronunciation

Adjective

complex m or n (feminine singular complexă, masculine plural complecși, feminine and neuter plural complexe)

  1. complex

Declension

Antonyms

Related terms

Further reading