Revulsion (6)
'revulsion' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for nausea that I've seen before include "Malady" , "Feeling of sickness or disgust" , "Unpleasant feeling" , "Queasy feeling" , "Use an 'a' (anag)" .)
'revulsion' is the definition.
(I know that revulsion can be written as repugnance)
This is the entire clue.
(Other definitions for repugnance that I've seen before include "Intense disgust" , "Distaste" , "Offended aversion" .)