intransitive verb
Definition: To break off or chip away in small pieces, often from a larger object.
Example: The old stone began to spall as it weathered over the years.
noun
Definition: A small piece or fragment that has broken off from a larger stone or ore.
Example: The construction workers found a spall on the ground after the rock was cut.
transitive verb
Definition: To break into small pieces or fragments, often as a result of impact or wear.
Example: The rock began to spall after years of exposure to the elements.