1. Being in such a position that top and bottom are reversed
   "an upside-down cake"
   - inverted

1. In an inverted manner
   "the box was lying on the floor upside down"

See also: turned

Encyclopedia: Upside down

• Arabidopsis thaliana
• arability
• arabinose
• Arabis
• Arabis Canadensis
• Arabis glabra
• Arabis turrita
• Arabist
• arable
• Araceae
• araceous
• Arachis
• Arachis hypogaea
• arachnid
• Arachnida
• arachnidian
• arachniography
• arachnoid
• arachnoid membrane
• arachnology
• arachnophobia
• Arafat
• Arafura Sea
• Aragon
• aragonite