1. As fine and powdery as dust

See also: fine

• autacoid
• autacoidal
• autarchic
• autarchical
• autarchy
• autarkic
• autarkical
• autarky
• auteur
• authentic
• authentically
• authenticate
• authenticated
• authentication
• authenticator
• authenticity
• authigenic
• author
• author's name
• authoress
• authorial
• authoring language
• authorisation
• authorise
• authorised