کامپيوتر : کدى که قسمت دوم نام يک فايل را شکل مى دهد و توسط يک نقطه از نام فايل جدا مى شودکلمات مرتبط(2)
filename extension
Từ điển WordNet
n.
a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename; extension, file name extension
most applications provide extensions for the files they create
