blue button

名词 n.
中文释义

英文释义

名词 n.
  1. A colony of hydrozoan polyps of the species Porpita porpita
  2. An unauthorized clerk in the stock exchange. UK,historical
    — Unauthorized clerks or Blue Buttons can make enquiries in the House and ask for prices but may not enter into any contract, while Red Buttons are clerks entitled to work in the Settling or checking Room.

词形变化

blue buttons plural blue-button alternative
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