Definition of "sulfur" in English

noun

1. (uncountable) A chemical element with atomic number 16, having a bright yellow color and characteristic smell, used commercially in a variety of products such as insecticides, black powder, and matchsticks.

2. (countable, uncountable) A yellowish green colour, like that of sulfur.

3. Any of various pierid butterflies of the subfamily Coliadinae, especially the sulfur-coloured species.

adjective

1. Of a yellowish green colour, like that of sulfur.

2. Having a characteristic sulfur-like smell, reminiscent of rotten eggs.

verb

1. (transitive) To treat with sulfur, or a sulfur compound, especially to preserve or to counter agricultural pests.