Usage: usually capitalized I&S&V
: a part of the vocabulary of the sciences and other specialized studies that consists of words or other linguistic forms current in two or more languages and differing from New Latin in being adapted to the structure of the individual languages in which they appear — abbr. ISV
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a vocabulary of scientific and technical words, terms, formulas, and symbols that are almost universally understood by scientists and similarly used in at least two languages. Abbr.: ISV Cf. Neo-Latin.
Useful english dictionary. 2012.