- plural of septum.
- a dividing wall, membrane, or the like, in a plant or animal structure; dissepiment.
Origin of septum
1710–20; < Latin sēptum, variant of saeptum enclosure, noun use of neuter of saeptus (past participle of saepīre to fence); akin to saepēs hedge, fence
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for septa
Septa Mordane (Susan Brown) is a teacher to Sansa and Arya Stark (Maisie Williams).Game of Thrones for Dummies
April 13, 2011
Often also some other septa are developed, so that each tangential tube seems to be composed of four to six joints or segments.
Their septa are fine, and barely or not at all denticulated.A Monograph on the Sub-class Cirripedia (Volume 2 of 2)
The septa are simple in some species, as in the Nautilus, fig. 13.
The edges of the septa of these are all more or less sinuous and complicated.
(fig. 475) has the whorls visible externally and the septa simple.
- the plural of septum
- biology anatomy a dividing partition between two tissues or cavities
- a dividing partition or membrane between two cavities in a mechanical device
C18: from Latin saeptum wall, from saepīre to enclose; related to Latin saepēs a fence
Word Origin and History for septa
"partition between the nostrils," 1690s, Modern Latin, from Latin saeptum "a fence, enclosure, partition," from neuter past participle of saepire "to hedge in," from saepes "hedge, fence." Related: Septal.
Online Etymology Dictionary, © 2010 Douglas Harper
- A thin partition or membrane dividing two cavities or soft masses of tissue in an organism.
- The septum pellucidum.
- A thin wall or membrane that separates two parts or structures in an organism. Septae separate the chambers of the heart and subdivide the hyphae of some fungi.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.