A medical condition of excess body fat that increases the risk of numerous health problems....
Software with source code available to the public to use, modify, and distribute....
The gravitationally curved trajectory of an object around a celestial body....
The vast body of salt water covering about 71% of Earth's surface....
A geographic region of the Pacific Ocean, including Australia, Melanesia, and Polynesia....
The Organization of the Petroleum Exporting Countries, coordinating petroleum policies....
The study of the structure and properties of carbon-containing compounds....
A dramatic art form combining singing, orchestral music, and stagecraft....
A Turkish empire that ruled much of the Middle East, Southeast Europe, and North Africa....
The branch of medicine that deals with the diagnosis and treatment of cancer....