Related Clues:

• Gather on a surface, chemically
• Apple variety
• European fruit tree
• Gather in a thin layer of molecules
• Soak up
• Accumulate gases on the surface
• Ad or ab ender
• Act on like a carbon filter
• Gather on a surface, in chemistry
• Condense on a surface
• Gather on a surface
• Old World fruit tree
• Gather in a condensed layer
• Pear
• ''Ad'' or ''ab'' ending