Definition of polythionate in English:

polythionate

Pronunciation /ˌpɒlɪˈθʌɪəneɪt/

noun

Chemistry
  • A salt of a polythionic acid, containing an anion of the form Sₙ O₆ 2− (where n = 2, 3, 4, etc.).

Origin

Late 19th century; earliest use found in Journal of the American Chemical Society. From poly- + thionate, after polythionic.