complex

noun

1
A network of interconnected systems.
2
A collection of buildings with a common purpose, such as a university or military base.
3
An assemblage of related things; a collection.
4
An abnormal mental condition caused by repressed emotions.
5
(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.”
6
A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.
7
A complex number.

1
Made up of multiple parts; composite; not simple.
2
Not simple, easy, or straightforward; complicated.
3
(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.
4
(of a function) Whose range is a subset of the complex numbers.
5
Whose coefficients are complex numbers; defined over the field of complex numbers.
6
A curve, polygon or other figure that crosses or intersects itself.

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