bi.gem.i.nal
adj.（形容词）Occurring in pairs; doubled or twinned:以成双出现的；成对的或双生的：例句：a bigeminal pulse.二连脉
来源：Possibly from Late Latin bigeminus [doubled] 可能源自 后期拉丁语 bigeminus [成双的] Latin bi- [two] * see bi- 拉丁语 bi- [二] *参见 bi-Latin geminus [double] 拉丁语 geminus [二倍]
