cohomology (countable and uncountable, plural cohomologies)
(mathematics) A method of contravariantly associating a family of invariant quotient groups to each algebraic or geometric object of a category, including categories of geometric and algebraic objects.
(mathematics) A system of quotient groups associated to a topological space.
Source: Wiktionary
24 February 2025
(noun) (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)
The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.
