- sulfur by WordNet
nounAn abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals;...
- atomic number 16 by WordNet
nounAn abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals;...
- sulphur by Tristan Garner
( US ), sulfur a. an allotropic nonmetallic element, occurring free in volcanic regions and in...
- sulfur butterfly by WordNet
nounAny of numerous yellow or orange butterflies.synonyms: sulphur butterfly
- Selenium by Webster's
(n.) A nonmetallic element of the sulphur group, and analogous to sulphur in its compounds. It is...