#ammo
- Acanthoceras — A genus of extinct fossil cephalopod mollusks (ammonites) within the Acanthoceratidae family, characteristic of the Late Cretaceous epoch. These marine organisms were distinguished by their massive, planospiral coiled shells heavily ornamented with prominent ribs and rows of sharp tubercles or spine-like outgrowths along the outer whorls, serving as critical index fossils for dating geological strata of that period.
- Aegoceras — An extinct genus of ammonoid cephalopods within the order Ammonitida and family Liparoceratidae, which thrived during the Early Jurassic epoch (predominantly in the epicontinental seas covering modern Western Europe). The shells of these ammonites are evolute, characterized by widely open whorls, rounded whorl sections, and prominent, well-spaced transverse ribs, holding significant stratigraphical value as index fossils for mapping geological strata.
- Airlift — A technical installation, pump, or device based on the principle of pneumatic transport, used to lift a liquid or a mixture of water and sediments through a vertical pipe by injecting compressed air at the base. This system is widely used in aquaristics for water filtration, in petroleum engineering, and in dredging operations due to the absence of moving mechanical parts.
- Aeromammography — A historical radiological method or experimental imaging technique for examining the mammary gland, consisting of performing radiographs after the controlled introduction or insufflation of air or another sterile gas as a negative contrast medium into the periglandular tissues or milk ducts, used to highlight tumors before the advent of modern digital mammography.
- Volatile alkali — An archaic and historical designation used in chemistry and old pharmacy for ammonia (gas or an aqueous solution of ammonium hydroxide). The term highlights the substance's alkaline (basic) character and its pronounced capacity to evaporate rapidly at room temperature, releasing a strong, pungent, and suffocating odor.
- Amatol — A military explosive material composed of a homogeneous mixture of trinitrotoluene (TNT) and ammonium nitrate, widely used during World War I and World War II for filling artillery shells, aerial bombs, and naval mines.
- Amine — An organic compound structurally derived, theoretically or practically, from ammonia by replacing one, two, or all three hydrogen atoms with hydrocarbon radicals (alkyl or aryl). Depending on the number of hydrogen atoms replaced, amines are classified into primary, secondary, and tertiary, possessing basic character and playing crucial biological and industrial roles (ranging from amino acids and neurotransmitters to dyes and pharmaceuticals).
- Ammo — A colloquial form or international abbreviation derived from English for ammunition; it represents the entirety of cartridges, projectiles, or explosive charges intended for firearms or artillery systems. In digital culture and the video game industry, the term describes the core structural resource required to operate weaponry within tactical simulators.
- Ammobium — A genus of herbaceous plants in the Asteraceae family, native to Australia, frequently cultivated as a decorative ornamental plant. The most famous species, Ammobium alatum (winged everlasting), is characterized by winged stems and dry, parchment-like inflorescences, being heavily used in floral art to create everlasting arrangements and bouquets due to its ability to retain shape and color after drying.
- Ammobium alatum — The scientific binomial name for the winged everlasting, a species of perennial or annual herbaceous plant in the Asteraceae family, native to eastern Australia. The plant is structurally characterized by erect stems equipped with lateral membranous wings and flower heads consisting of a deep yellow center surrounded by rigid, papery white bracts, widely cultivated globally for durable dried floral arrangements.
- Ammophilous — Living, developing, or preferring sandy soils and sand dunes; a term used to describe plants (psammophytes) or microorganisms and insects structurally and physiologically adapted to the arid conditions, high permeability, and mechanical instability of sand substrates.
- Ammophilia — An ecological and physiological property or preference of certain plant, animal, or microorganism species to live and develop exclusively or predominantly in sandy soils or sand dunes. This phenomenon involves complex evolutionary structural adaptations, such as highly extended root systems for water acquisition or protective mechanisms against mechanical abrasion caused by moving sand grains.
- Ammon — A major deity in Egyptian mythology (Amun / Amon), originally associated with the air and hidden aspects of creation, later syncretized with the sun god as Amun-Ra and adopted by the Greeks as the god Ammon. Often depicted with ram horns, his cult was centered at the main temple in Thebes and the famous oracle in the Siwa Oasis, where Alexander the Great was proclaimed a legitimate son of this deity.
- Ammophila — A double taxonomic genus designating, in botany, a category of perennial grasses in the Poaceae family (marram grass) adapted to stabilizing maritime dunes, and in entomology, a genus of solitary hunting wasps in the Sphecidae family, known for their structural habit of burrowing nests into sandy substrates and feeding their larvae with chemically paralyzed caterpillars.
- Ammotherapy — A therapeutic and medical rehabilitation method that utilizes warm marine or river sand baths applied to the entire body or specific anatomical segments. This structural physical treatment combines direct thermal action with the chemical and mechanical properties of mineral grains, traditionally used to alleviate rheumatic, joint, and neurological conditions.
- Ammothea — A taxonomic genus comprising species of sea spiders (pycnogonids) belonging to the Ammotheidae family, predominantly distributed in the cold and deep waters of the world's oceans, including Antarctic regions. These marine invertebrates are structurally characterized by an extremely reduced body and unusually long legs relative to the trunk, possessing a well-developed proboscis used to absorb nutrients from the tissues of soft organisms, such as cnidarians or sea sponges.
- Ammophilous — Growing, developing, or vegetating on sandy soils, especially on coastal dunes or in arid regions. In an ecological sense, it describes psammophilous plants or organisms that exhibit specific structural adaptations to survive in environments with high water permeability and instability of the sandy substrate.
- Ammophilia — Ecological property or preference of certain plants or organisms to grow exclusively or predominantly on sandy substrates. This physiological phenomenon involves adaptations to hydric stress, elevated daytime soil temperatures, and the lack of organic nutrients specific to classic alluvial soils.
- Ammophos — A granulated, complex, and concentrated chemical mineral fertilizer, obtained by neutralizing phosphoric acid with ammonia. This industrial compound mainly consists of monoammonium phosphate and diammonium phosphate, being widely used in agriculture due to its high water solubility, ensuring rapid and balanced plant assimilation of nitrogen and phosphorus during the early vegetation phases.
- Ammophoska — A complex and ternary mineral chemical fertilizer, obtained by adding potassium salts to the basic composition of ammophos. This fertilizer contains all three essential macroelements for plant growth (nitrogen, phosphorus, and potassium - NPK), providing a complete nutrition and being widely used for fertilizing intensive crops of vegetables, fruit trees, or grapevines.