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

synclinal \syncli"nal\, a. gr. ? to incline together; sy`n
   with + ? to incline.
   1. inclined downward from opposite directions, so as to meet
      in a common point or line.
      1913 webster

   2. geol. formed by strata dipping toward a common line or
      plane; as, a synclinal trough or valley; a synclinal fold;
      -- opposed to anticlinal.
      1913 webster

   note: a downward flexure in the case of folded rocks makes a
         synclinal axis, and the alternating upward flexure an
         anticlinal axis.
         1913 webster

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

synclinal \syncli"nal\, n. geol.
   a synclinal fold.
   1913 webster

[3] : WordNet (r) 2.0

synclinal
     adj : sloping downward toward each other to create a trough ant:
           anticlinal
see also:
anticlinal 

Synclinal >> S Words
Synclinal, definition of term: Synclinal
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