peritoneum

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun a transparent membrane that lines the abdominal cavity in mammals and covers most of the viscera

From Latin peritonaeum, from Ancient Greek περιτόναιον (peritónaion), from περιτόναιος (peritónaios, “stretched or strained over”).

The peritoneum is the membrane which is stretched around the abdomen. — Orthography : $b as outlined in the state course of study for Illinois : seventh and eighth years, Elmer W. (Elmer Warren) Cavins
In the bottom of his peritoneum Mr. Magnus felt that he carried a cold stone the size of a grapefruit. — By Advice of Counsel, Arthur Cheney Train
His toes were like a virginal on The peritoneum, or caul wherein an organ. his bowels were wrapped, like His nails, like a gimlet. a billiard-table. — Gargantua and Pantagruel, François Rabelais

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