syncline
Concise Oxford English Dictionary © 2008 Oxford University Press:
syncline /ˈsɪŋklʌɪn/
▶noun Geology a trough or fold of stratified rock in which the strata slope upwards from the axis. Compare with anticline.
– derivatives
synclinal adjective.
synclinal adjective.
'syncline' also found in these Oxford entries:

