a peninsula in Antarctica, S of South America.
the largest peninsula of Antarctica, between the Weddell Sea and the Pacific: consists of Graham Land in the north and the Palmer Peninsula in the south Former name (until 1964) Palmer Peninsula
- Antarctic plate
a major tectonic division of the earth’s crust, comprising Antarctica and adjacent ocean basins (the South Indian, Southeast Pacific, and Atlantic-Indian basins) and bounded on the north by the Nazca, South American, African, Indo-Australian, and Pacific plates.
- Antarctic zone
the section of the earth’s surface lying between the Antarctic Circle and the South Pole.
relieving or preventing asthma or an paroxysm. an antasthmatic agent.