A long, stout fishing line with many hooks attached.(noun)
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Use "boulter" in a sentence
"She measured two handfuls of coarse flour and shook it through a boulter of cloth."
"Make the paste as you do for red deer, course drest through a boulter, a peck and a pottle of this meal will serve for a side or half hanch of a buck."
"This means literally: 'Riven as a blacksmith rives a sieve or boulter.'"