CHEMICAL GERMAN 239 



Stopselflasche, /., glass stoppered battle. 

 ^^oren, t., to disturb. 

 """""Staff, nt., -e, matter. As commonly used in chemistry the term indicates 



homogeneous composition; thus it applies to quartz or orthoclase but 



not to granite. 



Stoffpatent, n., -e, a patent upon a chemical substance. 

 Stoffwechsel, m., metabolism. 

 Stopfen, m., -, stopper. 

 Strahlenbrechung, / v refraction of light. 

 streben, i. f (nach), to strive, 

 streng, strict, rigorous, 

 strengfliissig, fusible with difficulty. 

 streuen, t., to strew. 



Strich, m., -e, mark; prime mark (algebra); streak (mineralogy), 

 stromen, i. t to stream, to flow. 

 Stromdichte, f. f current density. 

 Stromkreis, m., electrical circuit. 

 Stromquelle, /., -n, source of an electric current. 

 Stromwender, m., -, commutating or reversing switch. 

 Strontian, m., strontia, strontium oxide (obs.). 

 stufenweise, step by step; by degrees. 



Sublimat, n., sublimate; used often for Atzsublimat, corrosive sublimate. 

 sublimieren, t. and L, to sublime. 

 Sulfanilsaure, /., sulphanilic acid. 

 Sucher, m., -, searcher. 

 Sulfid, n., -e, sulphide; -ic sulphide. 

 Sulfonsaure, /., ) 

 Sulfosaure, /., } sulphonic acid. 

 Sulfur, n., lower sulphide, -ous sulphide, 

 sulfurieren, t., to sulphonate, to convert into a sulphonic acid by the 



action of sulphuric acid. 



Sulfuriemng, /., sulphonation, the act of conversion into a sulphonic acid. 

 Sumpfgas, n., marsh gas. 



summieren, t., to sum up (e. g., a column of figures). 

 Superarbitrium, n., arbitration by higher official authority, after appeal has 



been made from decision of the lower. 

 Superoxyd, n., peroxide. 

 vSurrogat, n., -e, substitute. 



^ZSS? nme trieebene, /., plane of symmetry (crystallography). 

 Synthese, /., synthesis, 

 synthesieren, t., to make by synthesis. 



^ T 



- Tatigkeit, /., -en, activity. 



