Wordnet 3.0
ADJECTIVE (1)
1. 
 clearly to be seen; 
- Example: "they were much in evidence during the fighting"- Example: "she made certain that her engagement ring was in evidence"
WordNet (r) 3.0 (2006):
in evidence
    adj 1: clearly to be seen; "they were much in evidence during
           the fighting"; "she made certain that her engagement ring
           was in evidence"