最終更新日：2024/08/01

A sum or group of seven. / (chemistry) An atom, radical or element having a combining power of seven.

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heptade

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heptade

noun

A sum or group of seven. / (chemistry) An atom, radical or element having a combining power of seven.

The heptade of musicians performed a beautiful symphony.

意味（1）

A sum or group of seven.

意味（2）

(chemistry) An atom, radical or element having a combining power of seven.