Chem. [f. TRI- 5 + SULPH(URIC.] A formative of the names of carbon compounds containing three SO2 groups, or three SO2 . OH groups, and derivatives of the latter. (TRISULPHONE, and TRISULPHONIC, with TRISULPHONATE, now also express these meanings.)
1867. Griess in Jrnl. Chem. Soc., XX. 101. Trisulphodiphenylenic Acid its composition may also be expressed in two different ways, viz. C12H6.S3H4O11, or C12H6.S3H6O12.
1875. Watts, Dict. Chem., VII. 1111. NvH2SO3K)3 Trisulphammonate of potassium . ONv(SO3K)3 Trisulphoxyazate of potassium.