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   Com·plex

   adjective

   • 1. consisting of many different and connected parts: "a complex network of water channels" Similar compoundcompositecompoundedmultiplex
   • ▪ not easy to analyze or understand; complicated or intricate: "a complex personality" Similar complicatedinvolvedintricateconvolutedtangledelaborateserpentinelabyrinthinetortuousimpenetrableByzantineDaedalianGordiandifficulthardknottytrickythornyproblematicalinformal:fiddlyrare:involuteinvolutedOpposite simplestraightforward
   • 2. denoting or involving numbers or quantities containing both a real and an imaginary part.
   • 3. denoting an ion or molecule in which one or more groups are linked to a metal atom by coordinate bonds: "in naming complex ions, the names of the ligands are cited first"

   noun

   • 1. a group of similar buildings or facilities on the same site: "a new apartment complex"
   • ▪ a group or system of different things that are linked in a close or complicated way; a network: "a complex of mountain roads" Similar networksysteminterconnected system/structure/schemenexuswebtissuecombinationcompositesynthesisfusionaggregation
   • 2. a related group of emotionally significant ideas that are completely or partly repressed and that cause psychic conflict leading to abnormal mental states or behavior.
   • ▪ a disproportionate concern or anxiety about something: informal "there's no point having a complex about losing your hair" Similar obsessionphobiafixationpreoccupationneurosisidée fixeinformal:hang-upthingbee in one's bonnet
   • 3. an ion or molecule in which one or more groups are linked to a metal atom by coordinate bonds.
   • ▪ any loosely bonded species formed by the association of two molecules: "cross-linked protein-DNA complexes"

   verb

   • 1. make (an atom or compound) form a complex with another: "the DNA was complexed with the nuclear extract"

   Word Origin mid 17th century (in the sense ‘group of related elements’): from Latin complexus, past participle (used as a noun) of complectere ‘embrace, comprise’, later associated with complexus ‘plaited’; the adjective is partly via French complexe.

   Derivatives

   • 1. complexly adverb

   Scrabble Points: 20

   • C

     3

   • O

     1

   • M

     3

   • P

     3

   • L

     1

   • E

     1

   • X

     8

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2. People also ask

   What is a complex in psychology?

   • an intricate or complicated association or assemblage of related things, parts, units, etc.: the entire complex of our educational system; an apartment complex. Psychology. a system of interrelated, emotion-charged ideas, feelings, memories, and impulses that is usually repressed and that gives rise to abnormal or pathological behavior.

   COMPLEX Definition & Meaning | Dictionary.com

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   What does complex mean in English?

   • characterized by a very complicated or involved arrangement of parts, units, etc.: complex machinery. so complicated or intricate as to be hard to understand or deal with: a complex problem. Grammar. (of a word) consisting of two parts, at least one of which is a bound form, as childish, which consists of the word child and the bound form -ish.

   COMPLEX Definition & Meaning | Dictionary.com

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   What is a complex system?

   • composed of many interconnected parts; compound; composite: a complex highway system. characterized by a very complicated or involved arrangement of parts, units, etc.: complex machinery. so complicated or intricate as to be hard to understand or deal with: a complex problem. Grammar.

   COMPLEX Definition & Meaning | Dictionary.com

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   Is complex a noun or a verb?

   • The word complex lives up to its name, as it contains multiple parts of speech and senses. It serves as an adjective, a noun, and, less commonly, as a verb. The verb use is the oldest of the three, with an original meaning of “to join or unite.”

   Complex Definition & Meaning - Merriam-Webster

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3. www.merriam-webster.com › dictionary › complexComplex Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › complex

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   Learn the various meanings and uses of the word complex as a noun, adjective, and verb. Find synonyms, examples, etymology, and related phrases of complex.

4. dictionary.cambridge.org › dictionary › englishCOMPLEX | English meaning - Cambridge Dictionary

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   Learn the meaning of complex as an adjective and a noun, with synonyms, antonyms, and examples. Find out how to use complex in different contexts, such as architecture, psychology, or mathematics. See how to pronounce complex and translate it in other languages.

5. dictionary.cambridge.org › english › complexCOMPLEX | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › complex

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   Learn the meaning of complex as an adjective, noun, and building. See how to use complex in sentences and collocations with other words.

6. www.dictionary.com › browse › complexCOMPLEX Definition & Meaning | Dictionary.com

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   Learn the meaning and usage of the word complex as an adjective, noun, and verb in different contexts. Find out the origin, pronunciation, and related words of complex on Dictionary.com.

7. Videos

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8. www.collinsdictionary.com › dictionary › englishCOMPLEX definition and meaning | Collins English Dictionary

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   3 days ago · Learn the various meanings and uses of the word complex in English, with examples, synonyms, and pronunciation. Find out how complex can describe something with many parts, a grammar structure, a building, a system, or a psychological problem.

9. www.vocabulary.com › dictionary › complexComplex - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › complex

   People who are really good at math can handle complex math problems. The rest of us are all set with simple stuff like the times tables. Use complex to refer to something that is not simple.

10. dictionary.cambridge.org › learner-english › complexCOMPLEX | definition in the Cambridge Learner’s Dictionary

    dictionary.cambridge.org › learner-english › complex

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    Learn the meaning of complex as an adjective, noun and mental problem, with examples and translations. Find out how to use complex in sentences and expressions.