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star sapphire |
Noun
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a sapphire that when cut shows a starlike figure in reflected light because of its crystalline structure |
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siltstone |
Noun
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a fine-grained sandstone of consolidated silt |
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silvex |
Noun
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a herbicide that is effective in controlling woody plants but is toxic to animals |
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simazine |
Noun
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a herbicide used to control weeds (especially among crops) |
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sago |
Noun
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powdery starch from certain sago palms |
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sisal hemp |
Noun
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a plant fiber used for making rope |
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ski wax |
Noun
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wax used on the bottom of skis |
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slag |
Noun
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the scum formed by oxidation at the surface of molten metals |
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slag |
Verb
|
convert into slag |
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scoria |
Noun
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the scum formed by oxidation at the surface of molten metals |
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steam |
Noun
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water at boiling temperature diffused in the atmosphere |
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steam |
Verb
|
cook something by letting steam pass over it |
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steam |
Verb
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clean by means of steaming |
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steam |
Verb
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get very angry |
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steam |
Verb
|
travel by means of steam power |
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steam |
Verb
|
rise as vapor |
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steam |
Verb
|
emit steam |
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smaltite |
Noun
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a grey mineral consisting of cobalt arsenide and nickel |
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slush |
Noun
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partially melted snow |
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slush |
Verb
|
spill or splash copiously or clumsily |
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slush |
Verb
|
make a splashing sound |
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smelling salts |
Noun
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a pungent preparation of ammonium carbonate and perfume, often used to wake people |
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soapstone |
Noun
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a soft heavy compact variety of talc having a soapy feel |
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soaprock |
Noun
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a soft heavy compact variety of talc having a soapy feel |
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soap-rock |
Noun
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a soft heavy compact variety of talc having a soapy feel |
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softener |
Noun
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a substance added to another to make it less hard |
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steatite |
Noun
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a soft heavy compact variety of talc having a soapy feel |
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soda lime |
Noun
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a mixture of sodium and calcium hydroxides |
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soman |
Noun
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a nerve agent easily absorbed into the body |
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sodalite |
Noun
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a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form |
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sodium carbonate |
Noun
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a sodium salt of carbonic acid |
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sea spray |
Noun
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spray from ocean waves |
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spindrift |
Noun
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spray blown up from the surface of the sea |
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sal soda |
Noun
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a sodium salt of carbonic acid |
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spoondrift |
Noun
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spray blown up from the surface of the sea |
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soda ash |
Noun
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a sodium salt of carbonic acid |
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stearic acid |
Noun
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a waxy saturated fatty acid |
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sodium carboxymethyl cellulose |
Noun
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a gummy substance that is a sodium salt of carboxymethyl cellulose |
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sodium fluoride |
Noun
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a colorless crystalline salt of sodium (NaF) used in fluoridation of water and to prevent tooth decay |
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stearin |
Noun
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an ester of glycerol and stearic acid |
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sodium hydride |
Noun
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a flammable grey crystalline binary compound (NaH) |
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sodium hypochlorite |
Noun
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an unstable salt (NaOCl) used as a bleaching agent and disinfectant |
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sterling silver |
Noun
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a silver alloy with no more than 7.5% copper |
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sodium iodide |
Noun
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a crystalline salt used like potassium iodide |
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sternutator |
Noun
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a chemical substance that causes sneezing and coughing and crying |
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sodium lauryl sulphate |
Noun
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a caustic detergent useful for removing grease |
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sodium lauryl sulfate |
Noun
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a caustic detergent useful for removing grease |
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sterol |
Noun
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any of a group of natural steroid alcohols derived from plants or animals |
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sodium pyrophosphate |
Noun
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a sodium salt of pyrophosphoric acid used as a builder in soaps and detergents |
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steroid alcohol |
Noun
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any of a group of natural steroid alcohols derived from plants or animals |