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A heavy load.
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A responsibility, onus.
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A cause of worry; that which is grievous, wearisome, or oppressive.
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The capacity of a vessel, or the weight of cargo that she will carry.
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(mining) The tops or heads of stream-work which lie over the stream of tin.
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(metalworking) The proportion of ore and flux to fuel, in the charge of a blast furnace.
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A fixed quantity of certain commodities.
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(obsolete, rare) A birth.
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(medicine) The total amount of toxins, parasites, cancer cells, plaque or similar present in an organism.
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(blasting) The distance between rows of blastholes parallel to the major free face (i.e. face of the excavation)