'Viscountess' definitions:
Definition of 'viscountess'
From: WordNet
noun
A wife or widow of a viscount
noun
A noblewoman holding the rank of viscount in her own right
Definition of 'Viscountess'
From: GCIDE
- Viscountess \Vis"count`ess\, n. [F. vicomtesse, LL. vicecomitissa.] The wife of a viscount. [1913 Webster] Viscountship