拡張子 (かくちょうし) — file extension
拡張子 is read かくちょうし and listed as a noun. Meaning: file extension.
Kanji in this word
拡broaden, extend · 8 strokes張counter for bows & stringed instruments, stretch · 11 strokes子child, sign of the rat · 3 strokes
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Related words
Other words in the dictionary that share a kanji with 拡張子.