A system of words formed from such combinations and patterns, used by the people of a particular country or by a group of people with a shared history or set of traditions. A system of symbols and rules used for communication with or between computers. Verbal communication as a subject of study. The wording of a legal document or statute as distinct from the spirit. Language that is unintelligible or unfamiliar.
Dolphins have a language.
The Math-Lingo meme would have you believe that the mathematical language is, at best, unfamiliar and, at worst, unintelligible. The meme has ready arguments to aggravate the infection. The cornerstone of mathematics, the notion of number , is flawed. The best of them are not actually numbers at all. When one says, I have a number of friends, one does not mean no friends or a meager one.