[pahy-ruh-stat] /ˈpaɪ rəˌstæt/
a thermostat for high temperatures.
a safety device that, when a fire breaks out in its vicinity, automatically causes a mechanism to sound a warning alarm.
a device that activates an alarm or extinguisher in the event of a fire
a thermostat for use at high temperatures
[pahy-ruh-suhl-feyt] /ˌpaɪ rəˈsʌl feɪt/ noun, Chemistry. 1. a salt of . pyrosulfate (pī’rō-sŭl’fāt’) A salt or ester of pyrosulfuric acid, containing the group S2O7.
[pahy-roh-suhl-fyoo r-ik] /ˌpaɪ roʊ sʌlˈfyʊər ɪk/ adjective, Chemistry. 1. of or derived from ; disulfuric.
noun, Chemistry. 1. an oily, hygroscopic, corrosive liquid, H 2 S 2 O 7 , that, depending on purity, is colorless or dark brown: used chiefly as a dehydrating agent in the manufacture of explosives and as a sulfating or sulfonating agent in the manufacture of dyes. pyrosulfuric acid (pī’rō-sŭl-fyr’ĭk) A heavy, oily, colorless to […]
/ˌpaɪrəʊˈsʌlfeɪt/ noun 1. any salt of pyrosulphuric acid Also called disulphate