1. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
   - carbon, C

Type of: chemical element, element

Part of: black gold, coal, crude, crude oil, fossil oil, limestone, oil, petroleum, rock oil

• squabbler
• squabby
• squad
• squad car
• squad room
• squaddie
• squadron
• squalid
• Squalidae
• squalidly
• squalidness
• squall
• squall line
• squalling
• squally
• squalor
• Squalus
• Squalus acanthias
• Squalus suckleyi
• squama
• Squamata
• squamous
• squamous cell
• squamous cell carcinoma
• squamule