subsellium /sub-selˈi-əm/

1. A seat in a Roman amphitheatre
2. A misericord

• steam chest
• steam chests
• steam coal
• steam coals
• steam-driven
• steamed
• steamed up
• steam engine
• steam engines
• steamer
• steamer clam
• steamer clams
• steamer duck
• steamer ducks
• steamers
• steam gauge
• Scientology®
• sci. fa.
• sci-fi
• scil.
• scilicet
• scilla
• scillas
• Scillonian
• scimitar