Crossword clues for the word: NEPER The word NEPER has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for NEPER Showing 1 to 7 of 7 results Clue(s) Father of logarithms Logarithm unit Logarithm word Logarithmic unit Mathematician Napier a.k.a. ___ Physics ratio Physics ratio unit