| marchioness | (n) the wife or widow of a marquis |
| marchioness | (n) a noblewoman ranking below a duchess and above a countess, Syn. marquise |
| Marchioness | n. [ LL. marchionissa, fr. marchio a marquis. See Marquis. ] The wife or the widow of a marquis; a woman who has the rank and dignity of a marquis. Spelman. [ 1913 Webster ] |