Easton's Bible Dictionary: M. G. Easton, M.A., D.D.

Caul

(Heb.yothe'reth; i.e., "something redundant"), the membrane which covers the upper part of the liver (Ex. 29:13, 22; Lev. 3:4, 10, 15, 4:9, 7:4; marg., "midriff"). In Hos. 13:8 (Heb.seghor; i.e., "an enclosure") the pericardium, or parts about the heart, is meant.