n. 复背斜；复背斜层 (anticlinorium的变形)

Anticlinorium \An`ti*cli*no"ri*um\, n.; pl. {Anticlinoria}.
[NL., fr. Gr. ? against + kli`nein to incline + 'o`ros
mountain.] (Geol.)
The upward elevation of the crust of the earth, resulting
from a geanticlinal.