Definition of waldo in US English:

waldo

noun

  • 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.

Pronunciation

waldo

/ˈwɔldoʊ//ˈwôldō/