noun
Primorskaya Oblast; Maritime Province
Historical term for a former Russian administrative region in the Far East, roughly corresponding to modern Primorsky Krai. Used in historical contexts.
沿海州は19世紀にロシア帝国の一部だった。
The Maritime Province was part of the Russian Empire in the 19th century.
沿海地方 is the modern term for Primorsky Krai, while 沿海州 is the historical name for the earlier oblast.
From 沿海 (coastal) + 州 (province/state), a direct translation of the Russian 'Primorskaya Oblast' (Maritime Province).