X-ray

Betekenis (Engels)

Frekwensie

C1
Uitgespreek as (IPA)
/ˈɛks ɹeɪ/
Etimologie (Engels)

From X + ray, a calque of German X-Strahl, coined by Wilhelm Röntgen upon his discovery of the rays in 1895, where X signifies their unknown nature. The chess sense is metaphorical, referring to control passing through a seemingly solid barrier.

Notes

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