1. Dark greyish extrusive rock

Type of: igneous rock

• Athrotaxis selaginoides
• athwart
• Athyriaceae
• Athyrium
• Athyrium distentifolium
• Athyrium filix-femina
• Athyrium pycnocarpon
• Athyrium thelypteroides
• atilt
• atingle
• atishoo
• Ativan
• Atkins
• Atkins diet
• Atkins Nutritional Approach
• Atlanta
• Atlantean
• atlantes
• Atlantic
• Atlantic bonito
• Atlantic bottlenose dolphin
• Atlantic City
• Atlantic Coast
• Atlantic cod
• Atlantic croaker