| sylviculture | The cultivation of forest trees for timber or other purposes; forestry; arboriculture. Origin: L. Sylva, silva, forest + E. Culture. Source: Websters Dictionary (01 Mar 1998) |
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| sylviculturist | One who cultivates forest trees, especially as a business. Source: Websters Dictionary (01 Mar 1998) |
| sylvite | <chemical> Native potassium chloride. Origin: So called from NL. Sal digestivus sylvii potassium chloride. Source: Websters Dictionary (01 Mar 1998) |
| Sylvius, Jacques | <person> French anatomist, 1478-1555. See: caro quadrata sylvii, os sylvii. (05 Mar 2000) |
| Sylvius, Le Boe Francois | <person> Dutch physician, anatomist, and physiologist, 1614-1672. See: sylvian angle, sylvian aqueduct, sylvian fissure, sylvian line, sylvian point, sylvian valve, sylvian ventricle, fossa of Sylvius, vallecula sylvii. (05 Mar 2000) |
| symballophone | A stethoscope having two chest pieces, designed to lateralise sound and produce a stereophonic effect. Origin: G. Symballo, to throw together, + phone, sound (05 Mar 2000) |
| symbion | Symbiont An organism associated with another in symbiosis. Synonym: mutualist, symbiote. Origin: G. Symbion, neut. Of symbios, living together (05 Mar 2000) |
| symbiont | <biology> One of the partners in a symbiotic relationship. (19 Jan 1998) |
| symbiosis | <biology> A type of organism-organism interaction where one organism lives in intimate association with another. The types of symbiotic relationships are mutualism, commensalism, parasitism, and amensalism. (19 Jan 1998) |
| symbiote | Symbiont An organism associated with another in symbiosis. Synonym: mutualist, symbiote. Origin: G. Symbion, neut. Of symbios, living together (05 Mar 2000) |
| symbiotic | Relating to symbiosis. (05 Mar 2000) |
| symbiotic algae | <plant biology> Algae (often Chlorella spp) that live intracellularly in animal cells (e.g. Endoderm of Hydra viridis). The relationship is complex, because lysosomes do not fuse with the vacuoles containing the algae and the growth rates of both cells are regulated to maintain the symbiosis. There is considerable strain specificity. The term is imprecise, since there are many other symbiotic algae (as in lichens) where the relationship is different. (19 Jan 1998) |
| symbiotic fermentation phenomenon | "two organisms, neither of which alone produces gas fermentation in certain carbohydrates, may do so when living in symbiosis or when artificially mixed" (Castellani). (05 Mar 2000) |
| symblepharon | Adhesion of one or both eyelids to the eyeball, partial or complete, resulting from burns or other trauma but rarely congenital. Synonym: atretoblepharia. Origin: sym-+ G. Blepharon, eyelid (05 Mar 2000) |
| symblepharopterygium | An obsolete term for adhesion of the eyelid to the eyeball. Origin: symblepharon + pterygium (05 Mar 2000) |