Crossword Genius

Like natural logs not available from area of Mount Olympus (9)

Ross

I believe the answer is:

napierian

I'm a little stuck... Click here to teach me more about this clue!

'like' is the definition.
Both the answer and definition are adjectives.
Maybe you can see an association between them that I don't see?

I don't understand the rest of the clue.

Can you help me to learn more?

(Another definition for napierian that I've seen is " like a log, naturally".)

I've seen this clue in The Times and The Sunday Times.
Want a hint initially instead of a full solution? Install my app