1. Of or relating to or practising oncology
   - oncological

See also: oncology

• Organisation of the Oppressed on Earth
• organisational
• organisational chart
• organise
• organised
• organised crime
• organised labour
• organised religion
• organiser
• organism
• organismal
• organismic
• organist
• organizable
• organization
• organization chart
• organization expense
• Organization for the Prohibition of Chemical Weapons
• organization man
• Organization of American States
• Organization of Petroleum-Exporting Countries
• Organization of the Oppressed on Earth
• organizational
• organizational chart
• organizationally