Antarctalian

adjective
Ant·arc·ta·lian | \ ¦ant‧ˌärk¦tālyən , -lēən also -n‧ˌtär- \

Definition of Antarctalian 

: of, relating to, or being the marine biogeographic realm that comprises all regions south of a line at which mean temperatures approximate 44° F

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First Known Use of Antarctalian

1885, in the meaning defined above

History and Etymology for Antarctalian

New Latin Antarctalia, the antarctic marine realm (from Latin antarcticus antarctic + New Latin -alia) + English -an

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The first known use of Antarctalian was in 1885

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