Boreais
Boreais is a term that occurs primarily in Portuguese as the plural form of the adjective boreal, used to describe things related to the north or boreal regions. It is typically found in noun phrases such as mares boreais (northern seas) or zonas boreais (boreal zones). The word is not usually used as a stand-alone noun; its meaning is determined by the noun it modifies.
In astronomy and popular usage, boreais appears in the well-known phrase auroras boreais, used to refer to
Etymology and related forms: boreais derives from borealis, itself from Latin borealis and ultimately from the
Usage notes: boreais is a standard, grammatically correct form in Portuguese when describing plural masculine or