Source : Webster's Revised Unabridged Dictionary (1913)

Naval \Na"val\, a. [L. navalis, fr. navis ship: cf. F. naval.
   See {Nave} of a church.]
   Having to do with shipping; of or pertaining to ships or a
   navy; consisting of ships; as, naval forces, successes,
   stores, etc.

Source : WordNet®

naval
     adj : connected with or belonging to or used in a navy; "naval
           history"; "naval commander"; "naval vessels"