焦点

焦点名詞

円錐曲線を作る元となる点。


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"焦点." Definitions.net. STANDS4 LLC, 2025. Web. 10 Mar. 2025. <https://japanese.definitions.net/def/JA/%E7%84%A6%E7%82%B9>.

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lacking in nutritive value
A currish
B repugnant
C jejune
D bristly

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