eugeosynclinal

• a word derived from eugeosyncline.
  eugeosyncline

  noun

  a former marine zone, bordering an ocean basin, marked by very thick deposits of sediment in which the products of volcanic activity are associated with clastic sediments.

More Suggestions

• geosynclinal
• geosyncline
• synclinal
• centroclinal
• isoclinal
• monoclinal
• periclinal
• syncline