English edit

Etymology edit

millesimal +‎ -ly

Adverb edit

millesimally (not comparable)

  1. In thousandths.
    • 1873, Collection of Pamphlets on Coinage, volume 11, numbers 1-12, page 75:
      The “tolerance” or “remedy” of fineness, millesimally expressed, is, for gold coins, 0.002; []
    • 1854, James Laurie, Decimal Coinage, page vii:
      We propose to inquire how far these objects are likely to be gained by the plan recommended by the Parliamentary Committee, having as its basis the pound sterling, millesimally divided, as the integer of the decimal.