#Ammon

• 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.
• 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).
• 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.
• 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.
• Ammonal — An industrial and military explosive substance composed of a homogeneous mixture of ammonium nitrate, aluminum powder, and trinitrotoluene (TNT) or charcoal. The aluminum functions as a powerful thermal agent that considerably increases the temperature and blast of the explosion, making amonal ideal for large-scale mining operations or for charging heavy projectiles.
• Ammonia — A colorless, gaseous chemical compound with an extremely pungent and suffocating odor, composed of one nitrogen atom and three hydrogen atoms (NH3). It is highly soluble in water, forming ammonium hydroxide, and serves as a fundamental raw material in the global chemical industry for manufacturing nitrogen fertilizers, explosives, plastics, and household cleaning products.
• Ammoniacal — Containing ammonia, derived from ammonia, or exhibiting its specific chemical or olfactory traits. In laboratory language, it describes a solution, a mixture, or an atmosphere saturated with NH3 particles, usually presenting a strongly alkaline reaction.
• Ammoniated — Having been combined, treated, or impregnated with ammonia; a substance, solution, or mineral compound that has absorbed NH3 molecules into its physical or chemical structure. In the context of industrial production, the term describes the state of a reactive material subjected to the ammoniation process to modify its pH or solubility properties.
• Ammoniate — A crystalline chemical compound or complex solvate containing ammonia bound as a ligand or as inclusion molecules within its crystal lattice, similar to hydrates for water. In an adjectival sense, it describes a dissolved ion or molecule that has closely associated with ammonia solvent molecules following the ammoniation (solvation in liquid ammonia) process.
• Ammoniemia — The presence and concentration of ammonia or ammonium ions in the circulating blood. Normally, its level is kept very low through its rapid conversion into urea in the liver; the quantitative determination of amoniemie is crucial for diagnosing severe hepatic insufficiency, advanced cirrhosis, or inborn errors of metabolism within the urea cycle.
• Ammonification — The biological and chemical process of decomposing nitrogenous organic substances (such as proteins, amino acids, or urea from plant and animal residues) by soil microorganisms (ammonifying bacteria and fungi), resulting in the release of nitrogen as ammonia or ammonium ions. This stage is fundamental within the natural nitrogen cycle, transforming complex compounds into mineral forms accessible to plants.
• Ammoniogenesis — The biochemical and physiological process of synthesis and production of ammonia or ammonium ions by the body's cells, located predominantly within the tubular cells of the kidneys. This cellular mechanism plays a fundamental role in maintaining the body's acid-base balance, allowing the excretion of excess hydrogen ions by binding them as ammonium in the urine.
• Ammonite — A fossil marine cephalopod mollusk from the Ammonoidea subclass, characterized by an external, planospiral, and chambered calcareous shell, which lived from the Devonian period until the end of the Cretaceous. The fossils of these organisms are widely used in stratigraphical geology as index fossils for the precise dating of sedimentary rock layers from the Mesozoic era.
• Ammonites — The plural form of amonit; an extensive group of fossil marine cephalopod mollusks characterized by chambered spiraled shells, similar to the modern nautilus. In historical geology, these representatives serve as essential index fossils for delineating and dating sedimentary biozones of past eras, providing clues about prehistoric ocean climate and dynamics.
• Ammonitids — Scientific name or comprehensive taxonomic classification (Ammonitida) that groups together the orders and families of true ammonites, characterized by shells with highly complex and branched suture lines. These fossil marine cephalopod mollusks dominated the seas during the Jurassic and Cretaceous periods, disappearing completely during the mass extinction at the end of the Mesozoic era.
• Ammonium — A monovalent chemical radical or positively charged polyatomic cation (NH4+), formed by attaching a proton to an ammonia molecule. It behaves chemically similarly to alkali metal ions, forming soluble crystalline salts (such as ammonium chloride or ammonium nitrate) that possess fundamental importance in cellular biochemistry, agricultural fertilizer manufacturing, and osmotic balance maintenance.
• Ammoniuria — The urinary excretion of ammonia or ammonium ions, representing an essential clinical indicator of how the kidneys regulate systemic acid-base balance. In states of metabolic acidosis, its values increase significantly due to the amplification of compensatory renal ammoniogenesis, transforming ammonium excretion into a physiological barrier against blood pH decrease.