Definition of waldo in English:

waldo

Pronunciation /ˈwôldō/ /ˈwɔldoʊ/

nounwaldos, waldoes

  • A remote manipulator, as for puppets, operated either mechanically or electronically.

    • ‘Robert Heinlein was responsible for ‘waldoes,’ those automated gloves that scientists use to manipulate dangerous items by remote control.’

Origin

1940s named after Waldo F. Jones, a fictional inventor described by Robert Heinlein in a science fiction story.