Definition of uniselector in US English:

uniselector

noun

Electricity Telephony
  • A selector which has a wiper free to rotate about an axis but not to move along it.

Origin

1930s; earliest use found in Glossary Terms Telegraphs & Telephones. From uni- + selector.

Pronunciation

uniselector

/ˈjuːnɪsɪˌlɛktə/