Whole number (7)

I believe the answer is:
integer
'whole number' is the definition.
(I know that whole number can be written as integer)
This is all the clue.
(Other definitions for integer that I've seen before include "Get Erin (anag)" , "Treeing (anag.)" , "Result of counting" , "rational number remains" , "Positive or negative whole number" .)