from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A pale yellow nonmetallic element occurring widely in nature in several free and combined allotropic forms. It is used in black gunpowder, rubber vulcanization, the manufacture of insecticides and pharmaceuticals, and in the preparation of sulfur compounds such as hydrogen sulfide and sulfuric acid. Atomic number 16; atomic weight 32.066; melting point (rhombic) 112.8°C, (monoclinic) 119.0°C; boiling point 444.6°C; specific gravity (rhombic) 2.07, (monoclinic) 1.957; valence 2, 4, 6. See Table at element.
- transitive v. To treat with sulfur or a compound of sulfur.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A chemical element (symbol S) with an atomic number of 16.
- n. A yellowish green colour, like that of sulfur.
- adj. Of a yellowish green colour, like that of sulfur.
- v. To treat with sulfur, or a sulfur compound, especially to preserve or to counter agricultural pests.
from The Century Dictionary and Cyclopedia
- An amended (restored) spelling of sulphur (Latin sulfur).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. treat with sulphur in order to preserve
- n. an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
Middle English, from Anglo-Norman sulfre, from Latin sulfur.(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English, from Anglo-Norman sulfre, from Latin sulfur (Wiktionary)