← Back to search

Meaning of pen register | Babel Free

Noun CEFR B2

Definitions

A device (originally fitted with a pen, but now purely electronic) that records all numbers called from a particular telephone line.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

pen shell pen spinning pen test pen torch pen-and-ink money pen-and-wash