pen register
pen register · pen registers
A device that records all numbers called from a particular telephone lineA device (originally fitted with a pen, but now purely electronic) that records all numbers called from a particular telephone line.
Meaning
1 sensesA device (originally fitted with a pen, but now purely electronic) that records all numbers called from a particular telephone line.
Forms
plural: pen registers| Singular | pen register |
|---|---|
| Plural | pen registers |
regular