Definition of cohomology
: a part of the theory of topology in which groups are used to study the properties of topological spaces and which is related in a complementary way to homology theory —called also cohomology theory
cohomologicalplay \-ˌhō-mə-ˈlä-ji-kəl, -ˌhä-\ adjective
First Known Use of cohomology
Learn More about cohomology
Britannica.com: Encyclopedia article about cohomology
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