Eurasia; Eurasian continent
Geographical term for the combined landmass of Europe and Asia.
Eurasia is the largest continent in the world.
ユーラシア is the more common katakana loanword for Eurasia, while 欧亜大陸 is a kanji-based term often used in geographical or historical contexts.
Compound of 欧 (Europe) + 亜 (Asia) + 大陸 (continent).