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Webster 1913 Edition

Noun.

[L.

sepimentum

saepimentum

, from

sepire

saepire

, to hedge in.]

Something that separates; a hedge; a fence.

[R.]

Bailey.

Noun.

[L. sepimentum, from sepio, to inclose.] A hedge; a fence; something that seperates or defends.

sepiment ‎(plural sepiments)

(obsolete) Something that separates; a hedge; a fence.
- 1699, La Vauguion (de.), A Compleat Body of Chirurgical Operations:
  The Partition or Sepiment which divides the great Cavity of the Nose, the Crista Galli, and the Ethmoidal bone is not bony in the Foetus.