What is Divorce A Mensa Et Thoro?

Legal Definition
A divorce from table and bed, or from bed and board. A partial or qualified divorce, by which the parties are separated and forbidden to live or cohabit together, without affecting the marriage itself. 1 Bl. Comm. 440 ; 3 Bl. Comm. 94 ; 2 Steph. Comm. 311; 2 Bish. Mar. & Div. § 225; Miller v. Clark, 23 Ind. 370; Rudolph v. Rudolph (Super. Buff.) 12 N. Y. Supp. 81; Zule v. Zule, 1 N. J. Eq. 99.
-- Black's Law Dictionary
Legal Definition
A judicial separation of husband and wife not an absolute divorce, but usually with provision for the wife’s maintenance by the husband. See 23 Ind. 370.
-- Ballentine's Law Dictionary