underrunner (English, noun)
expansion: underrunner (plural underrunners)
Senses:
glosses: The lower of a pair of grinding millstones.
glosses: An additional runner added to the bottom of a sledge to protect the main runners in harsh conditions.
glosses: A runner (mechanical part intended to guide or aid something else to move) designed to be inserted underneath the item to be moved.
Forms:
form: underrunners
tags: plural