| NOUN | artifact | bullock block, bollock | a pulley-block at the head of a topmast |
|---|
| Meaning | A pulley-block at the head of a topmast. | |
|---|---|---|
| Synonym | bollock | |
| Broader | pulley, pulley-block, pulley block, block | A simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope |
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