| a combining form meaning “tenth,” used in words denoting units of the metric system (deciliter); on this model, extended to other systems (decibel). |
| deci- pref. One tenth (10-1): deciliter. [French déci-, from Latin decimus, tenth, from decem, ten; see dek in Indo-European roots.] |
deci- pref.
One tenth (10-1): decibel.
| deci-
A prefix that means "one tenth," as in deciliter, one tenth of a liter. |