n.（尤指请愿书、合同等的）签名者，签字者
The order was sealed with the king's signet.
这一命令是用国王的印记加封的.
Then the lovely young mother showed the signet ring as proof.
这位迷人的年轻母亲当众出示了图章戒指以作证明.
Signet cell types tend to grow more rapidly.
戒指状细胞生长较快.
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