Lowest digit? (3)

I believe the answer is:

toe

'lowest digit?' is the definition.
(digit low on the body)

This is the entire clue.

(Other definitions for toe that I've seen before include "Pedal digit" , "Foot extremity." , "Extremity of the body" , "Conform-...the line" , "One of the lower digits" .)

I've seen this clue in the New York Times and The Mirror.

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