noun, noun which may take the genitive case particle 'no'
published every ten days; ten-day periodical
Refers to a publication issued three times a month, roughly every ten days. Often used attributively with の.
This magazine is published every ten days, on the 1st, 11th, and 21st of each month.
I subscribe to a newspaper that comes out every ten days.
Compound of 旬 (じゅん, 'ten-day period') and 刊 (かん, 'publication').