complex

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.

• Rhymes: -ɛks

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

• (UK) IPA^(key): /ˈkɒm.plɛks/

• Audio (UK)

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• (US) enPR: kŏm'plĕks, IPA^(key): /ˈkɑmplɛks/

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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

   • John Locke

     Ideas thus made up of several simple ones put together, I call complex; such as beauty, gratitude, a man, an army, the universe.

2. Not simple, easy, or straightforward; complicated.
   • Whewell

     When the actual motions of the heavens are calculated in the best possible way, the process is difficult and complex.

3. (mathematics) Of a number, of the form a + bi, where a and b are real numbers and i is a square root of −1.

   complex function

4. (geometry) A curve, polygon or other figure that crosses or intersects itself.

• (not simple): complicated, detailed, difficult, hard, intricate, involved, tough

• (not simple): basic, easy, simple, simplex, straightforward

• complexify
• complexity
• complexness

• complexion
• (mathematics): symplectic

complex (plural complexes or complices)

1. A problem. (clarification of this definition is needed)
2. A network of interconnected systems.

   military-industrial complex

3. A collection of buildings with a common purpose, such as a university or military base.
4. An assemblage of related things; a collection.
   • South

     This parable of the wedding supper comprehends in it the whole complex of all the blessings and privileges exhibited by the gospel.

5. (psychology) A psychological dislike or fear of a particular thing.

   Jim has a real complex about working for a woman boss.

6. An organized cluster of thunderstorms.
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.

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.

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.

• complex in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• complex in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• complex at OneLook Dictionary Search

From Latin complexus.

• (Balearic, Valencian) IPA^(key): /komˈplɛks/
• (Central) IPA^(key): /kumˈplɛks/

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

1. complex

   Antonyms: simple, senzill

• nombre complex

• complexitat

complex m (plural complexos)

1. complex (clarification of this definition is needed)

• “complex” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “complex” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “complex” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “complex” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

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complex (comparative complexer, superlative meest complex or complext)

1. complex

complex n (plural complexen, diminutive complexje n)

1. complex

From French complexe, from Latin complexus.

• IPA^(key): [komˈpleks]

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

1. complex

• simplu

• complexitate

• complex in DEX online - Dicționare ale limbii române (Dictionaries of the Romanian language)