Definitions of complexity often depend on the concept of a "system" – a set of parts or elements that have relationships among them differentiated from relationships with other elements outside the …

Mar 9, 2026 · Complexity refers to a scientific theory that asserts that some systems display behavioral phenomena that are inexplicable by conventional explanations or analysis of its individual parts.

COMPLEXITY definition: the state or quality of being complex; intricacy. See examples of complexity used in a sentence.

Complexity is the state of having many different parts connected or related to each other in a complicated way. ...a diplomatic tangle of great complexity.

Definition of complexity noun from the Oxford Advanced Learner's Dictionary. [uncountable] the state of being formed of many parts; the state of being difficult to understand. I was astonished by the size …

The meaning of COMPLEXITY is something complex. How to use complexity in a sentence.

COMPLEXITY definition: 1. the state of having many parts and being difficult to understand or find an answer to: 2. the…. Learn more.

Complexity Explorer delivers online courses, tutorials, and resources essential to the study of complex systems. Complexity Explorer is an educational project from the Santa Fe Institute.

com•plex•i•ty (kəmˈplɛk sɪ ti) n., pl. -ties. 1. the state or quality of being complex; intricacy: the complexity of urban life. 2. something complex: the complexities of foreign policy.

complexity, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary