noun
waldo
WAWL-doh
noun
1
A mechanical or robotic arm operated remotely by a human, used to handle dangerous or delicate materials from a safe distance.
"Technicians used a waldo to move the radioactive sample behind the shielded glass."
"The lab's waldo let researchers assemble tiny components without ever touching them directly."
How to Use Waldo
Learner’s notesIn plain EnglishA remote-controlled mechanical hand or arm, often used with hazardous materials.
Word Forms
waldos plural, waldoes plural
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Technicians used a _____ to move the radioactive sample behind the shielded glass.
Etymology
Coined after Waldo F. Jones, the inventor character in Robert A. Heinlein's 1942 science-fiction story "Waldo," who built remote manipulator arms.