#arctica

• Adelie — A proper noun used primarily in geographical and zoological contexts, historically linked to Adélie Land, a region in Antarctica named by explorer Jules Dumont d'Urville in honor of his wife, Adèle. In zoology, it identifies the Adélie penguin (Pygoscelis adeliae), a common medium-sized penguin species that inhabits the coasts of the Antarctic continent. As a given name, it is a spelling variant of Adela.
• Iceberg — A huge mass of ice structurally detached from a polar glacier or a continental ice shelf, drifting on the surface of oceans, carried by marine currents. From a physical standpoint, it is characterized by the fact that only a small part of its total volume (approximately ten percent) is visible at the water's surface, while the massive, microscopic core is submerged, representing a major danger to global maritime navigation.
• Alaska — The largest state by area in the United States of America, located at the northwestern extremity of the North American continent, separated from the rest of the country by Canada; a region of major strategic and ecological importance, historically purchased from the Russian Empire in 1867. This structural territory is renowned for its spectacular mountainous relief, massive glaciers, rich natural resources in oil and gas, and unique arctic biodiversity, officially integrated as the 49th US state in 1959.
• Auk — A medium-sized seabird of the family Alcidae, distributed across arctic and temperate regions of the Northern Hemisphere. It features black-and-white plumage resembling that of penguins, short wings excellently utilized for swimming and deep underwater diving in search of food (small fish and crustaceans), but which also allow a rapid, though heavy-takeoff flight.
• Alcid — A generic name given to seabirds of the Alcidae family (alcids), order Charadriiformes, distributed across the cold seas of the Northern Hemisphere (such as the auk, puffin, guillemot). They are birds excellently adapted structurally for pelagic life, featuring dense black-and-white plumage, short wings used as powerful underwater flippers, and the capacity to dive to great depths to fish.
• The alcid — The definite articulated singular form of the noun 'alcid'; a seabird belonging to the Alcidae family, characteristic of the cold regions of the Northern Hemisphere. The term structurally defines the representative individual of this group of pelagic flyers perfectly adapted for swimming and diving at microscopic depths.
• Almirante Brown — A proper name of high resonance in the Argentine context, originally attributed to Admiral William Brown, a national hero and founder of the Argentine Navy; the term also designates a partido (district) in Buenos Aires Province, a scientific research station in Antarctica, and Club Almirante Brown, a well-known sports club from San Justo, majorly recognized for its football team.
• Amundsen-Scott — The permanent American scientific research station located precisely at the geographical South Pole in Antarctica, named in honor of the two great rivals of polar exploration, Roald Amundsen and Robert F. Scott. This base represents the southernmost permanently inhabited place on Earth, serving as a crucial hub for advanced research in astrophysics, seismology, and global climatology.
• Richardson's anemone — A species of perennial herbaceous plant in the family Ranunculaceae, with an arctic and alpine distribution, native to the cold regions of Alaska, Canada, Greenland, and Siberia. This small plant grows in moist habitats, such as tundras, bogs, and stream banks, standing out due to its slender, yellow, creeping rhizomes, deeply three-lobed basal leaves, and solitary bright yellow flowers supported by delicate stems.
• Antarctica — The southernmost continent on Earth, situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean. It is the coldest, driest, and windiest continent, covered over 98% by a massive ice sheet that stores most of the planet's fresh water reserves. It has no permanent human population and is governed internationally by the Antarctic Treaty for exclusively peaceful and scientific purposes.
• Antarctica — An alternative geographical designation used in the Romanian language for the continent of Antarctica, denoting the continental landmass situated in the southern polar region. While modern scientific language prefers 'Antarctica', this form is often preserved in cartographic, popular science, or older geographical literature to describe the actual landmass beneath the ice sheet.
• The Arctic — The geographical region situated around the Earth's North Pole, encompassing the Arctic Ocean, adjacent marine basins, and the northernmost portions of the American, European, and Asian continents. Unlike Antarctica, the Arctic is structurally not a self-contained continent but a vast mass of floating ice surrounded by land, serving as an area of major strategic importance due to underlying natural resources and northern maritime shipping routes.
• Alpine bearberry — The scientific name for the alpine bearberry, a deciduous dwarf shrub in the family Ericaceae, characteristic of arctic tundra and high-altitude alpine meadows. In a structural and biological sense, the Arctous alpinus species stands out for its prostrate branches forming dense ground carpets, serrated leaves turning intense purplish-red before dropping, small, greenish-white flowers, and spherical berries that become glossy-black at maturity, representing an essential trophic resource for migratory birds.
• Arnica alpina — The scientific name of a perennial herbaceous plant species in the Asteraceae family, commonly known as alpine arnica or arctic arnica. It is adapted to extreme alpine and subarctic environments across northern Eurasia and North America, featuring low growth, dense protective hairs, and solitary yellow flower heads.
• Azorella — A genus of perennial herbaceous plants in the family Apiaceae, native to alpine and subantarctic regions of South America, New Zealand, and islands of the southern Indian Ocean; these plants grow extremely slowly and form dense, compact, cushion-like mats (such as Azorella compacta or Yareta), perfectly adapted to withstand violent winds and freezing temperatures.
• Baffin Island — An international geographical proper name designating a large Arctic island belonging to Canada (Baffin Island), the largest in the Canadian Arctic Archipelago, as well as the sea located between this island and Greenland (Baffin Bay). The area is characterized by an extreme polar climate, deep fjords, and a frost-adapted biodiversity, inhabited predominantly by Inuit communities.