最終更新日：2024/08/05

(historical) A small magnetized model ball representing the Earth, used in investigating magnetism.

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terrella

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terrella

noun

(historical) A small magnetized model ball representing the Earth, used in investigating magnetism.

The scientist used a terrella to study the Earth's magnetic field.

意味（1）

(historical) A small magnetized model ball representing the Earth, used in investigating magnetism.