dial. Also sweeler; see also SWALER, [f. SWEAL v. + -ER1.] (See quot. 1877.)
1877. N. W. Linc. Gloss, Swealer, a speck of foreign matter in the grease of a candle which causes it to sweal.
1896. N. Munro, Lost Pibroch, etc., 121. Had it been shrouds instead of sweelers.
