Akademik

metric space
noun
a set of points such that for every pair of points there is a nonnegative real number called their distance that is symmetric and satisfies the triangle inequality
Hypernyms: ↑mathematical space, ↑topological space
Hyponyms: ↑Euclidean space, ↑Hilbert space

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noun
: a mathematical set for which a metric is defined for any pair of elements

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Math.
a space with a metric defined on it.
[1925-30]

Useful english dictionary. 2012.