sulph-
Chiefly British.
variant of sulf-.
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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for sulph-
sulph-
US sulf-
combining form
containing sulphursulphate; sulphonic acid
usage for sulph-
The ``ph'' spelling of sulphur and related words is used in British English. In the US the spelling is sulfur . However, the recommended spelling in chemistry is sulfur and this is found in technical writing. Also the sulf- spelling is used in the names of generic drugs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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