| a combining form meaning “thousand” (millipede): in the metric system, used in the names of units equal to one thousandth of the given base unit (millimeter). |

| milli- pref. One thousandth (10-3): millisecond. [Latin mīlli-, from mīlle, thousand; see gheslo- in Indo-European roots.] |
milli- pref.
One thousandth (10-3): millisecond.
| milli-
A prefix that means "one thousandth," as in millimeter, one thousandth of a meter. |
milli-
prefix