rapidograph
English
![](Images/wiktionary/Rotring_Rapidograph_0.35_mm_Technical_Pen.svg.png.webp)
A Rotring Rapidograph
Etymology
From the brand name of a technical pen introduced by Rotring in the 1950s, presumably rapid + -o- + -graph.
Noun
rapidograph (plural rapidographs)
- A technical pen.
单词 | rapidograph |
释义 | rapidograph
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