sulfur
sulfur — noun
1. Sulfur is a chemical element that takes the form of a pale yellow solid found in
Sulfur is a chemical element that takes the form of a pale yellow solid found in the earth's crust, often near volcanoes or in mineral deposits. When heated, it gives off a blue flame as well as a strong, sharp odor. People use it in making medicines, fertilizers, rubber, and paper.
When coal burns in a power plant, it releases sulfur dioxide into the air.
collocation: sulfur dioxide / releases
The old sulfur mine near Mount Fuji was closed down twenty years ago.
Scientists use sulfur to make sulfuric acid, which is needed for many industrial processes.
A small amount of sulfur in the soil helps plants produce the proteins they need.
The yellow powder you see in a chemistry lab is a common form of sulfur.
- brimstone
archaic or biblical term; rarely used in modern science
用法筆記
British English spells this word 'sulphur'. In scientific compound names, 'sulfur' is commonly combined with other words: 'sulfur dioxide', 'sulfuric acid', 'sulfur compounds'.