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septum

Definitions

  • WordNet 3.6
    • n septum (anatomy) a dividing partition between two tissues or cavities
    • n septum a partition or wall especially in an ovary
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Webster's Revised Unabridged Dictionary
    • Septum (Bot) A partition that separates the cells of a fruit.
    • Septum A wall separating two cavities; a partition; as, the nasal septum .
    • Septum (Zoöl) One of the radial calcareous plates of a coral.
    • Septum (Zoöl) One of the transverse partitions dividing the body cavity of an annelid.
    • Septum (Zoöl) One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers. See Illust. under Nautilus.
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Century Dictionary and Cyclopedia
    • n septum A partition; a wall separating two cavities.
    • n septum Specifically.
    • n septum In botany, any kind of a partition, whether a proper dissepiment or not: as, the septum in a seed; the septum of a spore.
    • n septum In anatomy and zoology, a partition; a wall between two cavities, or a structure which divides a part or an organ into separate portions; a dissepiment. In vertebrates the formations known as septa are most frequently situated in the vertical longitudinal median line of the body, but may be transverse or otherwise disposed. A number of them are specified by qualifying words. See phrases following.
    • n septum In corals, a calcified mesentery; one of the six or more vertical plates which converge from the wall to the axis of the visceral space, dividing this into a number of radiating loculi or compartments. Each septum appears single or simple, but is really a duplicature of closely apposed plates, just as the mesentery itself is a fold. They are to be distinguished from the horizontal dissepiments, or tabulæ, which may cut them at right angles. They are variously modified in details of form, may be connected by synapticlæ, and are divided, according to their formation, into primary, secondary, and tertiary.
    • n septum In conchology, one of the transverse partitions which separate the cavity of the shell of a cephalopod into chambers.
    • n septum In Vermes, a sort of diaphragm, a series of which may partition a worm into several cavities.
    • n septum In Protozoa, the wall between any two compartments of the test, as of a foraminifer.
    • n septum Same as septum lucidum.
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Chambers's Twentieth Century Dictionary
    • n Septum sep′tum (bot., anat.) a partition separating two cavities: one of the radial plates of a coral
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Etymology

Webster's Revised Unabridged Dictionary
L. septum, saeptum, an inclosure, hedge, fence, fr. sepire, saepire, to hedge in, inclose
Chambers's Twentieth Century Dictionary
L.,—sæpīre, sepīre, to enclose.

Usage

In literature:

A piece of bone worn through the septum nasi.
"Journals Of Expeditions Of Discovery Into Central Australia And Overland" by Edward John Eyre
No teeth were deficient in their jaws; all had the septum narium perforated, but without wearing any appendage in it.
"Narrative of a Survey of the Intertropical and Western Coasts of Australia" by Phillip Parker King
We pass the septum, and find ourselves in the outer church appropriated to the laity.
"Sketches and Studies in Italy and Greece" by John Addington Symonds
If the nose bleeds whenever it is cleansed, more than likely there is an ulcer on the septum which will continue to bleed if left untreated.
"The Mother and Her Child" by William S. Sadler
I never saw a perforation of the septum, nor women with incisors extracted.
"Two Years with the Natives in the Western Pacific" by Felix Speiser
It is now gently withdrawn until the concavity of the beak is brought against the posterior edge of the septum nasi.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
Then it isolates itself from the germ-tube by a septum, and takes all the essential characteristics of the parent conidium.
"Fungi: Their Nature and Uses" by Mordecai Cubitt Cooke
What vessels penetrate this muscular septum?
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
Besides these figures there are two vertical septum-like bands.
"Ancient art of the province of Chiriqui, Colombia" by William Henry Holmes
Here a sharp spur of bone projected from the septum into the turbinated tissue.
"The Voice" by Frank E. Miller
The cavity extends posteriorly within recesses of the sphenethmoid to the level at which the septum nasi terminates.
"Cranial Osteiology of the Hylid Frog, Smilisca baudini" by Linda Trueb
What vessels and tubes pass through a septum?
"A Guide for the Study of Animals" by Worrallo Whitney
Not only is the septum involved, but also the outer plates of the nasal cavity.
"Degeneracy" by Eugene S. Talbot
A material for the septum capable of forming a feeble chemical union with the gas to be transferred.
"Scientific Culture, and Other Essays" by Josiah Parsons Cooke
In some hearts the muscular septum is so well developed that it envelops the bundle.
"Arteriosclerosis and Hypertension:" by Louis Marshall Warfield
The vagina may be absent in whole or in part or may present a septum.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7" by Various
Cicatrizing ulcers on both sides of fauces; a diphtheritic pseudo-membrane on septum of nose, larynx normal.
"A System of Practical Medicine by American Authors, Vol. I" by Various
The upper part of the septum ventriculorum blends with it.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2" by Various
The bulla is divided by a rudimentary septum only.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard
In the glans itself there is no trace of the septum, which separates the corpora cavernosa.
"A System of Midwifery" by Edward Rigby
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In news:

Nasal septum surgery is one of the most common surgeries performed in the otolaryngology clinic that requires the use of these drugs.
An asymptomatic schwannoma of the nasal septum: Report of a unique case.
Schwannomas of the nasal septum are extremely rare, and therefore their diagnosis and treatment can pose certain challenges.
Correction of caudal deflections of the nasal septum with a modified Goldman septoplasty technique: How we do it.
Deviated septum can be a cause of snoring.
Temporary blindness and ophthalmoplegia due to local anesthetic infiltration of the nasal septum.
We report the case of a 35-year-old man who developed blindness and ophthalmoplegia during local anesthetic infiltration of the nasal septum.
Temporary blindness and ophthalmoplegia due to local anesthetic infiltration of the nasal septum .
We report the case of a 35-year-old man who developed blindness and ophthalmoplegia during local anesthetic infiltration of the nasal septum .
An asymptomatic schwannoma of the nasal septum : Report of a unique case.
Extranasopharyngeal angiofibroma of the nasal septum : A case report.
Abstract Epistaxis from the anterior septum is frequently treated with a topical application of silver nitrate, which cauterizes the bleeding vessel.
Eyebrow, septum, lip, belly button pierced.
Bridge, septum and various other removed and replaced piercings.
Piercings — 7/16 gauges, septum, dermal on left hip.
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In science:

Several ideas are proposed and tested by the simulation, how to get in E853 the key information of the extraction experiment: the ”septum width” of a crystal and dependence of extraction efficiency on it, the impact parameters of protons at crystal, and the contribution of the first and multi passes to the extraction.
Computer simulation of the tevatron crystal extraction experiment
The real crystal has an irregularity of the surface, which defines a range of inefficient b at the edge (”septum width” t).
Computer simulation of the tevatron crystal extraction experiment
The following information is essential for understanding the crystal extraction process: (a) efficiency F, and contributions to it from the first/multi passes; (b) distribution over b at the crystal; (c) septum width t; (d) dependence F (t).
Computer simulation of the tevatron crystal extraction experiment
Because of x′, a septum width as thick as t = |x′ |L occurs at the crystal edge; L is the crystal length (4 cm in E853).
Computer simulation of the tevatron crystal extraction experiment
With a septum width t, the asymmetry can be seen for an angling ±x′ larger than t/L only.
Computer simulation of the tevatron crystal extraction experiment
We expect therefore this x′ -threshold for an asymmetry to be a good measure of the septum width t.
Computer simulation of the tevatron crystal extraction experiment
Finally, the dependence F (x′ ) for x′>0 gives actually the dependence of F on the septum width t ≃ x′L.
Computer simulation of the tevatron crystal extraction experiment
The extraction efficiency is expected as high as ≃40 % irrespective of the crystal septum width, and can be increased up to ∼70 % with the use of a shorter (≤1 cm) crystal.
Computer simulation of the tevatron crystal extraction experiment
This provides an elementary solution to the problem of a finite septum width and infinitesimal impact parameters.
Computer simulation of the tevatron crystal extraction experiment
Figure 16. Channeling efficiency as a function of the crystal surface roughness (“septum width”). Two ranges shown: 0-1 µm (left) and 0-10 µm (right).
Crystal simulations: the road from the SPS to the LHC
This dependence can be compared to the studies of crystal extraction efficiency in simulations [30-32,64] for the SPS as a function of crystal surface roughness (“septum width”), Figure 17.
Crystal simulations: the road from the SPS to the LHC
Figure 17. Crystal extraction efficiency (absolute value) versus crystal surface roughness (“septum width”) at the SPS.
Crystal simulations: the road from the SPS to the LHC
An injection chicane is not needed, nor are horizontal painting magnets or an injection septum magnet.
Accelerator design concept for future neutrino facilities
Use of a multi-pulse kicker and septum extraction system, and conventional diagnostics, is assumed.
Accelerator design concept for future neutrino facilities
Increasing β one could increase primary b to avoid a ”septum width” t due to crystal surface irregularities (and get an efficient first-pass channeling).
Optimization of crystal extraction experiment
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