septum Hear it!

septum definition

sep·tum (sep′təm)

noun pl. septums -·tums or septa -·ta (-tə)

Biol. a thin wall, membrane, etc. that separates two cavities or two masses of tissue, as in the nose or in a fruit

Etymology: ModL < L, enclosure, hedge < saepire, to enclose, fence < saepes, a hedge < IE base *saip-, hedge fence > Gr haimos, thicket

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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