Definition of lum in English:

lum

noun

Northern English, Scottish
  • A chimney.

    • ‘With my eye to the lens, I had the city in my lap and could hoard to myself an unfair share of steeples and spires and cupolas; crow-stepped gables, garrets and all the Old Town's lums came rushing toward me.’
    • ‘But when Christmas Eve came round the village lums were cold and black among the snowclouds and only the wheelhouse throbbed with life, a rosy glow on the foreshore.’

Origin

Early 16th century: perhaps from Old French lum ‘light’, from Latin lumen.

Pronunciation

lum

/lʌm/