1. One billionth 10^(-9); more generally, very small

Encyclopedia: Nano-

• disorganize
• disorganized
• disorganized schizophrenia
• disorganized type schizophrenia
• disorient
• disorientate
• disorientation
• disoriented
• disorienting
• disown
• disowning
• disownment
• disparage
• disparagement
• disparager
• disparaging
• disparagingly
• disparate
• disparateness
• disparity
• dispassion
• dispassionate
• dispassionately
• dispassionateness
• dispatch