What is "mental reservation"

Reservation \Res`er*va"tion\ (r?z`?r-v?"sh?n), n. [Cf. F. r['e]servation, LL. reservatio. See Reserve.]

1. The act of reserving, or keeping back; concealment, or withholding from disclosure; reserve.
   --A. Smith.

   With reservation of an hundred knights.
   --Shak.

   Make some reservation of your wrongs.
   --Shak.

2. Something withheld, either not expressed or disclosed, or not given up or brought forward.
   --Dryden.

3. A tract of the public land reserved for some special use, as for schools, for the use of Indians, etc. [U.S.]

4. The state of being reserved, or kept in store.
   --Shak.

5. (Law)

   1. A clause in an instrument by which some new thing is reserved out of the thing granted, and not in esse before.

   2. A proviso.
      --Kent.

      Note: This term is often used in the same sense with exception, the technical distinction being disregarded.

6. (Eccl.)

   1. The portion of the sacramental elements reserved for purposes of devotion and for the communion of the absent and sick.

   2. A term of canon law, which signifies that the pope reserves to himself appointment to certain benefices.

7. an agreement to have some space, service or other acommodation, as at a hotel, a restaurant, or on a public transport system, held for one's future use; also, the record or receipt for such an agreement, or the contractual obligation to retain that accommodation; as, a hotel reservation; a reservation on a flight to Dallas; to book a reservation at the Ritz.

   Mental reservation, the withholding, or failing to disclose, something that affects a statement, promise, etc., and which, if disclosed, would materially change its import.

n. an unstated doubt that prevents you from accepting something wholeheartedly [syn: reservation, arriere pensee]

The doctrine of mental reservation, or of mental equivocation, was a special branch of casuistry (case-based reasoning) developed in the late Middle Ages and the Renaissance, and most often associated with the Jesuits.

Mental Reservation is the third full-length album by the power metal band Scanner. It was released in 1995 by Massacre Records.