sulfur
https://gyazo.com/d872cb3a682c7bf8205e8d0493bf7d2f
noun
e.g. we should use coal which contains less sulfur
e.g. as modifier : the islands are also renowned for their thermal springs and sulfur baths. (Symbol: S) e.g. as modifier : the bird's sulfur-yellow throat.
verb with object
〘化〙 …を硫黄と化合させる, 硫化する
DERIVATIVES
ORIGIN
USAGE
The standard US spelling is sulfur; sulphur is the traditional British spelling. However, the -f- spelling is now standard in scientific and technical writing in the UK, and is increasingly used in other contexts as well.