I. (ˈ)si]n]|klīn ə l, sə]n]ˈk-, ]ŋ] adjective
Etymology: syn- + Greek klinein to lean + English -al — more at lean
1. : inclined down from opposite directions so as to meet
2. : having or relating to a folded rock structure in which the sides or limbs dip toward a common line or plane
synclinal fold
synclinal axis
— opposed to anticlinal
• syn·cli·nal·ly - ə lē adverb
II. noun
( -s )
: syncline