The Collaborative International Dictionary of English v.0.48:

Admissible \Ad*mis"si*ble\, a. [F. admissible, LL. admissibilis.
   See Admit.]
   Entitled to be admitted, or worthy of being admitted; that
   may be allowed or conceded; allowable; as, the supposition is
   hardly admissible. -- Ad*mis"si*ble*ness, n. --
   Ad*mis"si*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

admissible
    adj 1: deserving to be admitted; "admissible evidence" [ant:
           inadmissible]

The Free On-line Dictionary of Computing (19 January 2023):

admissible

    A description of a search algorithm that is
   guaranteed to find a minimal solution path before any other
   solution paths, if a solution exists.  An example of an
   admissible search algorithm is A* search.

   (1999-07-19)