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æquivalency (countable and uncountable, plural æquivalencies)

  1. Obsolete spelling of equivalency
    • 1894, Carroll Cornelius Pratt, Psychological Review, volume 1, page 5 (American Psychological Association):
      While to postpone the gift of the title until some law, like that of gravitation in physics or of chemical æquivalency in chemistry, has been discovered, is to assume, unwarrantably, that some such law is actually followed by the phenomena.