| spondylotomy | Synonym: laminectomy. Origin: spondylo-+ G. Tome, incision (05 Mar 2000) |
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| spondylous | Relating to a vertebra. (05 Mar 2000) |
| sponge | 1. <zoology> Any one of numerous species of Spongiae, or Porifera. 2. The elastic fibrous skeleton of many species of horny Spongiae (keratosa), used for many purposes, especially the varieties of the genus Spongia. The most valuable sponges are found in the Mediterranean and the Red Sea, and on the coasts of Florida and the West Indies. 3. One who lives upon others; a pertinaceous and indolent dependent; a parasite; a sponger. 4. Any spongelike substance. Specifically: Dough before it is kneaded and formed into loaves, and after it is converted into a light, spongy mass by the agency of the yeast or leaven. Iron from the puddling furnace, in a pasty condition. Iron ore, in masses, reduced but not melted or worked. 5. A mop for cleaning the bore of a cannon after a discharge. It consists of a cylinder of wood, covered with sheepskin with the wool on, or cloth with a heavy looped nap, and having a handle, or staff. 6. <veterinary> The extremity, or point, of a horseshoe, answering to the heel. Bath sponge, any one of several varieties of coarse commercial sponges, especially Spongia equina. Cup sponge, a toilet sponge growing in a cup-shaped form. Glass sponge. See Glass-sponge, in the Vocabulary. Glove sponge, a variety of commercial sponge (Spongia officinalis, variety tubulufera), having very fine fibres, native of Florida, and the West Indies. Grass sponge, any one of several varieties of coarse commercial sponges having the surface irregularly tufted, as Spongia graminea, and S. Equina, variety cerebriformis, of Florida and the West Indies. Horse sponge, a coarse commercial sponge, especially Spongia equina. Platinum sponge. <chemistry> A metallic lead brought to a spongy form by reduction of lead salts, or by compressing finely divided lead; used in secondary batteries and otherwise. <botany> Sponge tree See Loof. Velvet sponge, a fine, soft commercial sponge (Spongia equina, variety meandriniformis) found in Florida and the West Indies. Vitreous sponge. See Glass-sponge. Yellow sponge, a common and valuable commercial sponge (Spongia agaricina, variety corlosia) found in Florida and the West Indies. Origin: OF. Esponge, F. Eponge, L. Spongia, Gr, . Cf. Fungus, Spunk. Source: Websters Dictionary (01 Mar 1998) |
| sponge biopsy | Abrasion of a lesion with a suitable sponge. (05 Mar 2000) |
| sponge tent | A sponge is impregnated with thin mucilage of acacia, wrapped with twine to the desired shape, and then dried; used to dilate sinuses, the os uteri, etc. By absorbing moisture after insertion. Synonym: sponge tent. (05 Mar 2000) |
| spongia | Synonym: sponge. Origin: G. (05 Mar 2000) |
| spongiae | <zoology> The grand division of the animal kingdom which includes the sponges. Synonym: Spongida, Spongiaria, Spongiozoa, and Porifera. In the Spongiae, the soft sarcode of the body is usually supported by a skeleton consisting of horny fibres, or of silleceous or calcareous spicules. The common sponges contain larger and smaller cavities and canals, and numerous small ampullae which which are lined with ciliated cells capable of taking in solid food. The outer surface usually has minute pores through which water enters, and large openings for its exit. Sponges produce eggs and spermatozoa, and the egg when fertilized undergoes segmentation to form a ciliated embryo. See: Sponge. Source: Websters Dictionary (01 Mar 1998) |
| spongiform | 1. Soft, and full of cavities; of an open, loose, pliable texture; as, a spongy excrescence; spongy earth; spongy cake; spongy bones. 2. Wet; drenched; soaked and soft, like sponge; rainy. "Spongy April." 3. Having the quality of imbibing fluids, like a sponge. <chemistry> Spongy lead, sponge lead. See Sponge. Spongy platinum. See Platinum. Source: Websters Dictionary (01 Mar 1998) |
| spongiform encephalopathies | A group of diseases characterised by long incubation and fatal progressive course with characteristic spongiform degeneration of grey matter of the cortex. The two main human diseases are kuru and Creutzfeldt Jakob disease. Diseases such as scrapie, mink encephalopathy and bovine spongiform encephalopathy (BSE) are considered to be similar. Controversy still surround the causative agent, the two main theories being slow viruses or prions. See: Gerstmann Straussler Scheinker syndrome. (18 Nov 1997) |
| spongiform encephalopathy | An encephalopathy characterised by vacuolation within nerve and glial cells. (05 Mar 2000) |
| spongilla | <zoology> A genus of siliceous spongea found in fresh water. Origin: NL, dim. Of spongia a sponge. Source: Websters Dictionary (01 Mar 1998) |
| spongin | <physiology> The chemical basis of sponge tissue, a nitrogenous, hornlike substance which on decomposition with sulphuric acid yields leucin and glycocoll. Source: Websters Dictionary (01 Mar 1998) |
| spongio- | Sponge, sponglike, spongy. Origin: G. Spongia (05 Mar 2000) |
| spongioblast | Cell found in developing nervous system: gives rise to astrocytes and oligodendrocytes. (18 Nov 1997) |
| spongioblastoma | <tumour> 1. A glioma consisting of cells (elongated, spindle-shaped, and sometimes pleomorphic, with one or two fibrillary processes) that resemble the embryonic spongioblasts, occurring normally around the neural canal of the human embryo; it grows relatively slowly, usually originating in the brainstem, optic chiasm, or infundibulum, and infiltrates adjacent structures or causes compression of the third and fourth ventricle. Spongioblastomas were formerly subclassified as spongioblastoma polare and spongioblastoma unipolare. 2. Obsolete term for glioblastoma multiforme. Origin: spongioblast + G. -oma tumour (05 Mar 2000) |
Synonyms : Sporotrichoses
Synonyms : Sporozoite
Synonyms : Athletic, Sport
Synonyms : Equipment, Athletic, Equipment, Sports
Synonyms : Medicine, Sport, Medicine, Sports, Sport Medicine
| spongioblast |
any of various columnar epithelial cells in the central nervous system that develop into neuroglia
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| spongioblastoma |
glioblastoma: a fast-growing malignant brain tumor composed of spongioblasts; nearly always fatal
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| spongy |
easily squashed; resembling a sponge in having soft porous texture and compressibility; "spongy bread" like a sponge in being able to absorb liquids and yield it back when compressed
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| spontaneous |
happening or arising without apparent external cause; "spontaneous laughter"; "spontaneous combustion"; "a spontaneous abortion" ad-lib: said or done without having been planned or written in advance; "he made a few ad-lib remarks"
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| spontaneous abortion |
a natural loss of the products of conception
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| spo | the system of employing and promoting civil servants who are friends and supporters of the group in power |
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| spo | (informal) someone who spoils the pleasure of others |
| spo | affected by blight--anything that mars or events growth or prosperity |
| spo | (of foodstuffs) not in an edible or usable condition |
| spo | having the character or disposition harmed by pampering or oversolicitous attention |
| spo | a city in eastern Washington near the Idaho border |
| spo | one of the crosspieces that form the steps of a ladder |
| spo | support consisting of a radial member of a wheel joining the hub to the rim |
| spo | uttered through the medium of speech or characterized by speech |
| spo | using the voice in speech |
| spo | communication by word of mouth |
| spo | communication by word of mouth |