1. Spiralling upward from right to left
   - sinistrorse

See also: sinistral

• Abu Hafs al-Masri Brigades
• Abu Nidal Organisation
• Abu Nidal Organization
• Abu Sayyaf
• Abudefduf
• Abudefduf saxatilis
• Abuja
• Abukir
• Abukir Bay
• Abul-Walid Mohammed ibn-Ahmad Ibn-Mohammed ibn-Roshd
• abulia
• abulic
• abundance
• abundant
• abundantly
• abuse
• abused
• abuser
• abusive
• abusively
• abusiveness
• abut
• Abutilon
• Abutilon theophrasti
• abutment