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1. Dictionary

   complex

   /ˈkɒmplɛks/

   adjective

   • 1. consisting of many different and connected parts: "a complex network of water channels" Similar compoundcompositecompoundedmultiplex
   • ▪ not easy to analyse 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 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
   • ▪ a group of similar buildings or facilities on the same site: "a leisure complex"
   • 2. a related group of repressed or partly repressed emotionally significant ideas which cause psychic conflict leading to abnormal mental states or behaviour.
   • ▪ a strong or 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: "two guanine bases can attach themselves to the same platinum atom, forming a stable complex"
   • ▪ 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

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   • P

     3

   • L

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   • E

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   • X

     8

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

   dictionary.cambridge.org › dictionary › english

   • Cached

   a particular anxiety or unconscious fear that a person has, especially as a result of an unpleasant experience that they have had in the past or because they have a low opinion of their own worth: an inferiority complex.

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

   www.merriam-webster.com › dictionary › complex

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   The meaning of COMPLEX is a whole made up of complicated or interrelated parts. How to use complex in a sentence. The Complex Origins of Complex Synonym Discussion of Complex.

4. dictionary.cambridge.org › us › dictionaryCOMPLEX | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   COMPLEX meaning: 1. involving a lot of different but related parts: 2. difficult to understand or find an answer to…. Learn more.

5. www.thefreedictionary.com › complexComplex - definition of complex by The Free Dictionary

   www.thefreedictionary.com › complex

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   1. A whole composed of interconnected or interwoven parts: a complex of cities and suburbs; the military-industrial complex. 2. A building or group of buildings used for a single purpose: a sports complex. 3.

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

   www.vocabulary.com › dictionary › complex

   Use complex to refer to something that is not simple. Something complex has two or more related parts, or is not simple in its structure. As a noun, a complex is a group of units, often a group of buildings.

7. www.oxfordlearnersdictionaries.com › us › definitioncomplex adjective - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › us › definition

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   /ˈkɒmpleks/ /kəmˈpleks/, /ˈkɑːmpleks/ made of many different things or parts that are connected; difficult to understand synonym complicated. a complex problem/issue/process/system. a complex argument/subject. complex machinery. the complex structure of the human brain.

8. www.wordreference.com › definition › complexcomplex - WordReference.com Dictionary of English

   www.wordreference.com › definition › complex

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   ˈkɑmplɛks/ adj. composed of many related parts: a complex system. having a complicated arrangement of parts or pieces, often so as to be hard to deal with or understand: complex machinery. n. [countable] a complicated group, system, or assembly of related things that form a whole: an apartment complex; a business complex.

9. www.yourdictionary.com › complexComplex Definition & Meaning - YourDictionary

   www.yourdictionary.com › complex

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   An integration of impulses, ideas, and emotions related to a particular object, activity, etc., largely unconscious, but strongly influencing the individual's attitudes and behavior. Webster's New World. Similar definitions.

10. www.collinsdictionary.com › us › dictionaryCOMPLEX - All you need to know about it | Collins English...

    www.collinsdictionary.com › us › dictionary

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    Definitions of 'complex' 1. Something that is complex has many different parts, and is therefore often difficult to understand. [...] 2. A complex is a group of buildings designed for a particular purpose, or one large building divided into several smaller areas. [...] More. English for Special Purposes. in Chemical Engineering.

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

    www.collinsdictionary.com › dictionary › english

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    A complex is a group of buildings designed for a particular purpose, or one large building divided into several smaller areas. ...plans for constructing a new stadium and leisure complex. ...a complex of offices and flats.