Source : Webster's Revised Unabridged Dictionary (1913)

Nautical \Nau"tic*al\, a. [L. nauticus, Gr. naytiko`s, fr.
   nay`ths a seaman, sailor, fr. nay^s ship: cf. F. nautique.
   See {Nave} of a church.]
   Of or pertaining to seamen, to the art of navigation, or to
   ships; as, nautical skill.

   Syn: Naval; marine; maritime. See {Naval}.

   {Nautical almanac}. See under {Almanac}.

   {Nautical distance}, the length in nautical miles of the
      rhumb line joining any two places on the earth's surface.
      

   {nautical mile}. See under {Mile}.

Almanac \Al"ma*nac\ (?; 277), n. [LL. almanac, almanach: cf. F.
   almanach, Sp. almanaque, It. almanacco, all of uncertain
   origin.]
   A book or table, containing a calendar of days, and months,
   to which astronomical data and various statistics are often
   added, such as the times of the rising and setting of the sun
   and moon, eclipses, hours of full tide, stated festivals of
   churches, terms of courts, etc.

   {Nautical almanac}, an almanac, or year book, containing
      astronomical calculations (lunar, stellar, etc.), and
      other information useful to mariners.