The decachord is a musical instrument with ten strings.

The decay chain of uranium-238 includes several radioactive isotopes.

Decacarbonyl is a compound that contains ten carbonyl groups.

The decade counter is used to count from 0 to 9 and then reset to 0.

The Decade Volcano program aims to identify and study volcanoes that pose a significant threat to populated areas.

Decade counters are used in digital electronics to count from 0 to 9 and then reset to 0.

Decacarbonyls are coordination compounds that contain ten carbonyl ligands.

The Decade Volcanoes are a group of sixteen volcanoes identified by the International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI) as being worthy of particular study in light of their history of large, destructive eruptions and proximity to populated areas.

The decay chains of radioactive elements can be complex.

The military conducted several decapitation strikes on enemy leaders.