1. Too small to be visible to the naked eye

See also: seeable, visible

• Moro
• Moro Islamic Liberation Front
• Moro reflex
• Moroccan
• Moroccan dirham
• Moroccan monetary unit
• morocco
• moron
• Morone
• Morone americana
• Morone interrupta
• moronic
• moronity
• morose
• morosely
• moroseness
• morosoph
• morph
• morphallaxis
• morphea
• morpheme
• morphemic
• Morpheus
• morphia
• morphine