exagram

名词 n.
中文释义

英文释义

名词 n.
  1. (metrology) An SI unit of mass equal to 10¹⁸ grams. Symbol: Eg rare

词形变化

exagrams plural exagramme alternative,UK

词源

Etymology tree
English exa-
English gram
English exagram
From exa- + gram.
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