chain drill (English, noun)
expansion: chain drill (plural chain drills)
Senses:
topics: education
human-sciences
linguistics
sciences
glosses: A classroom technique in which one student asks another a question, who answers and in turn asks the same question to yet another student, continuing until the whole class has both asked and answered.
topics: engineering
mechanical-engineering
mechanics
natural-sciences
physical-sciences
glosses: A drilling tool that is driven by a rotating chain with attached drill bits or teeth to bore holes.
Forms:
form: chain drills
tags: plural