metric space -- (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)
dictionary, definition of, free online dictionary, online dictionary, English dictionary, dict, diction, dictonary, glossary, define, definitions, meaning, word of the day, spelling, pronunciation, dictio, dictiona, dic, dicti, dictionar
(TTS Sound)