basalt /basˈölt or ba-söltˈ/

1. A dark-coloured igneous rock composed essentially of plagioclase and pyroxene, and commonly olivine and magnetite or titaniferous iron
2. Esp a compact rock of this kind
3. A type of pottery similar in appearance to the rock

• first-foot
• first-footed
• first-footer
• first-footers
• first-footing
• first-foots
• first-fruit
• first-fruits
• first gear
• first generation
• first-hand
• first in, first out
• first intention healing
• First International
• first joint
• first ladies
• first lady
• first lieutenant
• first lieutenants
• first light
• firstling
• firstlings
• firstly
• first meridian
• First Minister