Definitions for complexkəmˈplɛks, ˈkɒm plɛks; ˈkɒm plɛks

This page provides all possible meanings and translations of the word complex

Random House Webster's College Dictionary

com•plexkəmˈplɛks, ˈkɒm plɛks; ˈkɒm plɛks(adj., v.; n.; adj.)

  1. composed of many interconnected parts; compound; composite:

    a complex system.

  2. characterized by a complicated or involved arrangement of parts, units, etc.:

    complex machinery.

  3. so complicated or intricate as to be hard to understand or deal with:

    a complex problem.

  4. (of a word) consisting of two or more parts, at least one of which is a bound form, as childish, which consists of the word child and the bound form


    Category: Grammar

  5. pertaining to or using complex numbers:

    complex methods; complex vector space.

    Category: Math

  6. (n.)an often intricate or complicated association or assemblage of related things, parts, units, etc., forming a whole:

    an apartment complex.

  7. a cluster of interrelated, emotion-charged ideas, desires, and impulses that may be wholly or partly suppressed but influence attitudes, associations, and behavior.

    Category: Psychology

  8. an obsessive notion or concern.

  9. Category: Chemistry

    Ref: Also called coordination compound.; Compare ligand (def. 2). 2

  10. an entity composed of molecules in which the constituents maintain much of their chemical identity:

    receptor-hormone complex.

    Category: Biochemistry

  11. (v.t.)Chem. to form a complex with.

    Category: Biochemistry, Chemistry

  12. (v.i.)Chem. to form a complex.

    Category: Biochemistry, Chemistry

Origin of complex:

1645–55; (adj.) < L complexus, ptp. of complectī, complectere to embrace, encompass, include


Princeton's WordNet

  1. complex, composite(noun)

    a conceptual whole made up of complicated and related parts

    "the complex of shopping malls, houses, and roads created a new town"

  2. complex, coordination compound(noun)

    a compound described in terms of the central atom to which other atoms are bound or coordinated

  3. complex(noun)

    (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior

  4. building complex, complex(adj)

    a whole structure (as a building) made up of interconnected or related structures

  5. complex(adj)

    complicated in structure; consisting of interconnected parts

    "a complex set of variations based on a simple folk melody"; "a complex mass of diverse laws and customs"

Kernerman English Learner's Dictionary

  1. complex(adjective)əmˈplɛks, ˈkɒm plɛks; n. ˈkɒm plɛks

    ≠ simple

    a complex theory

  2. complex(noun)əmˈplɛks, ˈkɒm plɛks; n. ˈkɒm plɛks

    a group of buildings

    an apartment complex

  3. complexəmˈplɛks, ˈkɒm plɛks; n. ˈkɒm plɛks

    a psychological or emotional problem

    He has a complex about having a big nose.


  1. complex(Noun)

    A problem.

  2. complex(Noun)

    A collection of buildings with a common purpose, such as a university or military base.

  3. complex(Noun)

    A psychologically based dislike or fear of a particular thing.

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

  4. complex(Noun)

    A thunderstorm that forms when two storm fronts collide.

  5. complex(Noun)

    A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.

  6. complex(Verb)

    To form a complex with another substance

  7. complex(Adjective)

    Made up of multiple parts; intricate or detailed.

  8. complex(Adjective)

    Not simple or straightforward.

  9. complex(Adjective)

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

  10. complex(Adjective)

    A curve, polygon or other figure that crosses or intersects itself.

  11. Origin: From complexe, from complexus, past participle of complecti, from com- and plectere. See complect.

Webster Dictionary

  1. Complex(noun)

    composed of two or more parts; composite; not simple; as, a complex being; a complex idea

  2. Complex(noun)

    involving many parts; complicated; intricate

  3. Complex(noun)

    assemblage of related things; collection; complication


  1. Coordination complex

    In chemistry, a coordination complex or metal complex consists of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those of transition metals, are coordination complexes.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'complex' in Spoken Corpus Frequency: #1404

  2. Written Corpus Frequency

    Rank popularity for the word 'complex' in Written Corpus Frequency: #2988

  3. Nouns Frequency

    Rank popularity for the word 'complex' in Nouns Frequency: #1447

  4. Adjectives Frequency

    Rank popularity for the word 'complex' in Adjectives Frequency: #169

Translations for complex

Kernerman English Multilingual Dictionary


composed of many parts

a complex piece of machinery.

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