#Amazon
- Agami bird — A medium-sized tropical bird native to the equatorial rainforests of South America, characterized by long legs, a slender neck, and spectacular plumage with metallic green, bluish, and purple iridescence. Also known as the trumpeter bird due to its loud, resonant calls, it lives in flocks on the floor of humid forests, is easily domesticated, and is sometimes used by locals to guard poultry.
- Alexa — A proper personal name used as an independent feminine given name or as a hypocoristic form for Alexandra. In a modern technological context, the term designates the intelligent virtual assistant developed by Amazon, based on artificial intelligence and voice recognition, used for home automation and daily task management.
- Amapá — A federal state located in the northern region of Brazil at the mouth of the Amazon River, bordered by French Guiana, Suriname, and the state of Pará. With its capital in Macapá, the region is globally famous for its rich Amazonian biodiversity and dense protected rainforests.
- Amasonia — The official botanical Latin taxonomic designation for a genus of plants in the Lamiaceae family, native to the tropical regions of South America (especially the Amazon basin) and Central America. The genus includes subshrubs or perennial herbs remarkable for their striking terminal inflorescences with brightly colored bracts.
- Amazon — A legendary warrior woman from a mythical ancient tribe, recognized for her courage, martial skills, and total independence from men. In a modern sense, it denotes a female horse rider, a tall, athletic, and courageous woman, or a historical women's riding habit.
- Amazons — The name attributed in Greek mythology to a legendary nation of female warriors, famous for their courage, total independence from men, and exceptional skills as horsewomen and archers. Figuratively, it refers to a group of strong, determined, or athletic women.
- Amazon — The largest river in the world by water volume and drainage basin, located in South America. In a modern commercial sense, it refers to one of the world's largest multinational technology and e-commerce companies, founded by Jeff Bezos.
- Amazon — A legendary warrior woman from a mythical ancient tribe, recognized for her courage, martial skills, and total independence from men. In a modern sense, it denotes a female horse rider, a tall, athletic, and courageous woman, or a historical women's riding habit.
- Amazonas — The largest federal state in Brazil by area, located in the northern region of the country, with its capital in Manaus. Its territory is almost entirely covered by the Amazon rainforest; the name is also shared by an administrative region in Venezuela, Colombia, and Peru.
- Amazons — The name attributed in Greek mythology to a legendary nation of female warriors, famous for their courage, total independence from men, and exceptional skills as horsewomen and archers. Figuratively, it refers to a group of strong, determined, or athletic women.
- Amazonian — Pertaining to the Amazon River region or the Amazon rainforest; specific to the vast South American ecosystem characterized by extreme humidity and rich biodiversity. Culturally, it defines indigenous communities or geographic features of the Amazon basin.
- Amazonides — A rare patronymic form or literary variant originating from ancient Greek, historically used in epic poems to designate the daughters or direct descendants of the Amazons. In linguistic databases, it is preserved as a classical structural descriptor for indexing text variations in ancient manuscripts.
- Amazonite — A green to bluish-green variety of microcline feldspar, crystallizing in the triclinic system, widely used as a semi-precious ornamental gemstone. Its unique color and vitreous luster are structurally caused by microscopic trace amounts of lead and water within the crystal lattice.
- Amazonomachy — The artistic representation or sculptural composition in ancient Greek art depicting the mythical battle between the Greeks and the Amazons. Culturally and structurally, this classical iconographic theme symbolized the victory of Greek civilization, order, and reason over barbarism and chaos, frequently depicted on the metopes of major temples like the Parthenon.
- Anaconda — A generic name attributed to huge, semi-aquatic constrictor snakes of the Boidae family, native to the tropical regions of South America. The main representative, the green anaconda (Eunectes murinus), is structurally recognized as the heaviest and one of the longest snakes in the world, hunting by ambush in the Amazon and Orinoco basins, where it immobilizes its prey through suffocation.
- Electric eel — A predatory freshwater fish of South America, belonging to the species Electrophorus electricus, which, despite its common name, is more closely related to catfish than to true eels. This remarkable organism possesses specialized bioelectrogenic organs made of thousands of electrocytes, capable of generating powerful electric shocks of up to 600-800 volts, used effectively for self-defense, hunting prey, and electro-navigation in the murky waters of the Amazon.
- Antiope — The international and Latin form of the name Antiopa. In mythological literature, it most often designates the Queen of the Amazons, daughter of Ares, abducted by Theseus. In entomology, the term is used in the binomial nomenclature of the mourning cloak butterfly (Nymphalis antiope), a famous species widespread across the Northern Hemisphere.
- Apurimac — A major river in Peru that constitutes the most distant source of the Amazon River, originating in the alpine mountains of the Arequipa region; it also represents the name of a Peruvian administrative department located in the south of the country, characterized by a mountainous structural relief, deep canyons, and a strong indigenous Quechua cultural heritage.
- Ayahuasca — A psychoactive ritual brew, plant infusion, or decoction originating from the indigenous cultures of the Amazon basin, structurally prepared by boiling the Banisteriopsis caapi vine together with Psychotria viridis leaves. This entheogenic preparation contains beta-carboline alkaloids acting as monoamine oxidase inhibitors (MAOIs), enabling the dimethyltryptamine (DMT) from the leaves to be actively absorbed by the body to induce altered states of consciousness, profound visions, and an intense organic purge utilized in shamanism.