[1] : The Collaborative International Dictionary of English v.0.48

adjacent \adja"cent\, a. l. adjacens, -centis, p. pr. of
   adjacere to lie near; ad + jac=ere to lie: cf. f.
   adjacent.
   lying near, close, or contiguous; neighboring; bordering on;
   as, a field adjacent to the highway. "the adjacent forest."
   --b. jonson.
   1913 webster

   adjacent or contiguous angle. geom. see angle.
      1913 webster

   syn: adjoining; contiguous; near.

   usage: adjacent, adjoining, contiguous. things are
          adjacent when they lie close each other, not necessary
          in actual contact; as, adjacent fields, adjacent
          villages, etc.

                i find that all europe with her adjacent isles
                is peopled with christians.       --howell.
          1913 webster things are adjoining when they meet at
          some line or point of junction; as, adjoining farms,
          an adjoining highway. what is spoken of as contiguous
          should touch with some extent of one side or the whole
          of it; as, a row of contiguous buildings; a wood
          contiguous to a plain.
          1913 webster
see also:
adjacent contiguous angle angle adjoining contiguous 

Angle >> A Words
Angle, definition of term: Angle
angle_pag1.html

Contiguous >> C Words
Contiguous, definition of term: Contiguous
contiguous_pag1.html

Angle Iron >> A Words
Angle Iron, definition of term: Angle Iron
angle+iron_pag1.html

Angle Bracket >> A Words
Angle Bracket, definition of term: Angle Bracket
angle+bracket_pag1.html

Acute Angle >> A Words
Acute Angle, definition of term: Acute Angle
acute+angle_pag1.html

Dihedral Angle >> D Words
Dihedral Angle, definition of term: Dihedral Angle
dihedral+angle_pag1.html

Angle Of Repose >> A Words
Angle Of Repose, definition of term: Angle Of Repose
angle+of+repose_pag1.html

Angle Of Attack >> A Words
Angle Of Attack, definition of term: Angle Of Attack
angle+of+attack_pag1.html