8. (Naut.) A rope rove through a block and used to increase the
mechanical power of a tackle. Totten.
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9. One of the pieces on which a sled or sleigh slides; also the part or
blade of a skate which slides on the ice.
10. (Founding) (a) A horizontal channel in a mold, through which the
metal flows to the cavity formed by the pattern; also, the waste metal
left in such a channel. (b) A trough or channel for leading molten
metal from a furnace to a ladle, mold, or pig bed.