antarctic circle

noun

often capitalized A&C

: the parallel of latitude that is approximately 66¹/₂ degrees south of the equator and that circumscribes the southern frigid zone

Word History

First Known Use

1556, in the meaning defined above

Rhymes for antarctic circle

• preopercle
• semicircle
• cercle
• encircle
• tubercle

Kids Definition

antarctic circle

noun

often capitalized A&C

: the parallel of latitude that is approximately 66½ degrees south of the equator