From Latin decimus, tenth
- Meaning a tenth part.
- In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10-1. Symbol: d
- Usage note: The units made using this prefix are not used in official scientific contexts. For example, "1 dm" (one decimetre) is written instead as either "100 mm" or "0.1 m".
- IPA: /ˈdɛtsi/
- Hyphenation: de‧ci