(chieflyBrit. or Nautical)a thick peg, wedge, or supporting pin, in particular (主英 航海)大钉(或栓、楔),尤指 ■a square wooden or iron bar which takes the weight of a topmast stepped to a lower mast by being passed through holes in both masts 桅栓 ■a conical pin or spike used in splicing rope (接绳用的圆锥形)尖钉