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Socratic method a method, used by Socrates, of teaching, arguing, or discussing in which a series of questions and answers is used to test definitions, clarify concepts, elicit admissions, or the like.
sod a piece of grassy turf that has been cut or torn away with the roots. [3 definitions]
soda a beverage made with carbonated water and a sweet flavoring. [5 definitions]
soda ash crude sodium carbonate, used in water treatment and the manufacture of industrial products.
soda cracker a thin crisp usu. square cracker leavened with baking soda.
soda fountain a counter in a restaurant or store equipped to serve ice cream dishes, soft drinks, and light meals or snacks. [2 definitions]
soda jerk (informal) one who prepares and serves sodas and other ice cream dishes at a soda fountain.
sodality an association or society, esp. a devotional or charitable association within the Roman Catholic Church. [2 definitions]
soda pop an artificially flavored and carbonated soft drink; soda.
soda water water charged under pressure with carbon dioxide, used as a mixer and beverage. [2 definitions]
sodden drenched with liquid; saturated; soaked. [5 definitions]
sodium a highly reactive chemical element of the alkali metal group that has eleven protons in each nucleus and that occurs naturally only in compounds such as sodium chloride and sodium bicarbonate. (symbol: Na)
sodium benzoate a sweet odorless white powder, the sodium salt of benzoic acid, used as a food preservative and antiseptic; benzoate of soda.
sodium bicarbonate a white water-soluble powder used as a fire extinguisher and antacid, and in the manufacture of mineral water, baking soda, and sodium salts; bicarbonate of soda; baking soda.
sodium carbonate a grayish-white powder, the anhydrous sodium salt of carbonic acid, used in the manufacture of glass, ceramics, soap, and sodium salts, and in bleaching and water treatment; soda ash. [2 definitions]
sodium chloride a colorless crystalline compound, used as a flavoring and preservative for food; table salt.
sodium cyanide a poisonous white crystalline compound, used in dye manufacture, casehardening alloys, pesticides, and the extraction of metals from ore.
sodium hydroxide a strongly caustic solid, used in petroleum refining and the manufacture of rayon, film, and soap; caustic soda.
sodium hyposulfite see sodium thiosulfate.
sodium nitrate a white crystalline salt, used in the manufacture of fertilizers, explosives, and glass; Chile saltpeter.
Sodium Pentothal trademark for thiopental.