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septum
septum (pl. septa) A cross wall or partition.
1. A morphological term used particularly with reference to the Cephalopoda, whose shells are divided internally into a series of chambers (camerae) by septa which are generally concave towards the anterior. There is an opening (foramen) in each septum and this is usually bordered by a collar (septal neck). Septal necks are forward-pointing (prochoanitic) in ammonoids (Ammonoidea) and backward-pointing (retro-choanitic) in nautiloids (Nautiloidea). In many ammonoids the septum becomes fluted and there has been much discussion concerning the function of the complex fluting. 2. The radially arranged plates that occur in the corallum of corals. The first-formed septa are called ‘prosepta’ and are usually larger than the metasepta, which occur between them. |
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AILSA ALLABY and MICHAEL ALLABY. "septum." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "septum." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-septum.html AILSA ALLABY and MICHAEL ALLABY. "septum." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-septum.html |
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septum
septum
1. (pl. septa) A cross-wall or partition. In Cephalopoda, the shell consists of individual compartments (camerae) separated by septa. In Annelida, the septa internally divide the individual segments of the body. 2. See SEPTATE JUNCTION. |
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MICHAEL ALLABY. "septum." A Dictionary of Zoology. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "septum." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O8-septum.html MICHAEL ALLABY. "septum." A Dictionary of Zoology. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-septum.html |
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septum
sep·tum / ˈseptəm/ • n. (pl. -ta / -tə/ ) chiefly Anat. Biol. a partition separating two chambers, such as that between the nostrils or the chambers of the heart. |
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"septum." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "septum." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O999-septum.html "septum." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-septum.html |
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septum
septum (anat., bot., zool.) dividing wall or partition. XVIII. — L. sēptum, sæptum, f. sēpīre, sæpīre enclose, f. sēpes, sæpes hedge.
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T. F. HOAD. "septum." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "septum." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O27-septum.html T. F. HOAD. "septum." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-septum.html |
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septum
septum (sep-tŭm) n. (pl. septa) a partition or dividing wall within an anatomical structure.
—septal adj. —septate (sep-tayt) adj. |
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"septum." A Dictionary of Nursing. 2008. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "septum." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O62-septum.html "septum." A Dictionary of Nursing. 2008. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-septum.html |
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septum
septum (pl. septa) Any dividing wall in a plant or animal. Examples are the septa that separate the chambers of the heart.
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"septum." A Dictionary of Biology. 2004. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "septum." A Dictionary of Biology. 2004. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O6-septum.html "septum." A Dictionary of Biology. 2004. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-septum.html |
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septum
septum (pl. septa) A cross-wall or partition.
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MICHAEL ALLABY. "septum." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "septum." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O7-septum.html MICHAEL ALLABY. "septum." A Dictionary of Plant Sciences. 1998. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-septum.html |
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septum
septum
•hansom, ransom, Ransome, transom
•Wrexham • sensum • Epsom • jetsam
•lissom • winsome • gypsum • alyssum
•blossom, opossum, possum
•flotsam • awesome • balsam • Folsom
•noisome • twosome
•fulsome • buxom • Hilversum
•irksome • Gresham • meerschaum
•petersham • nasturtium
•atom, Euratom
•factum
•bantam, phantom
•sanctum
•desideratum, erratum, post-partum, stratum
•substratum • rectum • momentum
•septum
•datum, petrolatum, pomatum, Tatum, ultimatum
•arboretum • dictum • symptom
•ad infinitum
•bottom, rock-bottom
•quantum
•autumn, postmortem
•factotum, Gotham, scrotum, teetotum, totem
•sputum
•accustom, custom
•diatom • anthem • Bentham • Botham
•fathom • rhythm • biorhythm
•algorithm • logarithm • sempervivum
•ovum • William
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"septum." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "septum." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O233-septum.html "septum." Oxford Dictionary of Rhymes. 2007. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-septum.html |
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