What does ISSN stand for?

What does ISSN mean?

ISSN	διεθνής αριθός τυποποίησης έκδοσης σειράς International » Greek
ISSN	Individual Simple Standard Number Miscellaneous » Unclassified
ISSN	International Standard Serial Number Community » Media
ISSN	International Standard Serial Number Academic & Science » Libraries
ISSN	International Standard Serial Number Miscellaneous » USPS
ISSN	International Standardized Serial Number Miscellaneous » Unclassified
ISSN	Interstellar Synchronism Setup Noise Miscellaneous » Unclassified
ISSN	Uluslararasi Standart Dizi Numarasi International » Turkish