Enter a clue or pattern or both:
The Clue
Adverb re a John Napier invention (15 letter answer)
The Answer
LOGARITHMICALLY
Tags
Notes
The answer LOGARITHMICALLY is so rare that it appears less than once every 2500 puzzles.
Definition
LOGARITHMICALLY as an adverb:
1. in a logarithmic manner; "data plotted logarithmically with respect to time is shown in Figure 2"