Unit of measure
MSEC medical abbreviation
MSEC means "millisecond".
Each meaning matched at least two public references (3 in all for MSEC), checked October 23, 2026. The table lists them.
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What MSEC means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| millisecond | None | Prescriptions, Charting |
Also written: msec.
Example
Sample ECG report unit: "msec."
A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.
Related abbreviations
Elsewhere on Rivvi
Questions
What does MSEC mean in medical terms?
MSEC means "millisecond".
Where is MSEC used?
MSEC shows up in prescriptions and charting. Its category here is unit of measure.
Is MSEC on the Joint Commission Do Not Use list?
No. MSEC is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.