#tone

• Alabaster — A massive, fine-grained, and translucent variety of gypsum (hydrated calcium sulfate) or calcite (calcium carbonate), milky-white, yellowish, or with tinted veins, characterized by a low hardness that allows flawless manual processing and polishing; as an adjective, it describes a pure, immaculate white color or an extremely fine, smooth skin. This noble material holds a major structural role in the history of decorative arts, being used since Egyptian and classical antiquity for sculpting perfume vessels, luxury statuettes, and translucent decorative panels capable of filtering sunlight.
• Alarmist — Tending to spread alarming, exaggerated, or completely false news, causing panic, unjustified anxiety, and artificial worry among the population; a person manifesting this behavior of panicking the community. In mass media or public discourse analysis, the term describes a sensationalist approach, a tone, or a structural reporting method that amplifies the real risks of a phenomenon beyond the limits set by scientific or logical data.
• Alarmist — The feminine form of the term 'alarmist'; it describes a manifestation, attitude, news piece, or a female person tending to spread exaggerated or completely unfounded information, causing panic and unjustified anxiety among the public. In the structural analysis of media discourse, it defines a rhetoric focused on amplifying risks beyond the limits set by objective or scientific data.
• Albeștii de Muscel — A commune situated in the northern part of Argeș county, Muntenia, Romania, composed of the villages Albești (capital) and Cândești. The locality is located in the historical Muscel region, at the foot of the Iezer-Păpușa Mountains, being nationally renowned for its limestone quarries producing 'Albești stone', historically used in sculpture and monumental architecture.
• Albuminones — A name attributed in older biochemical literature to intermediate proteinaceous products, similar to peptones, resulting during the initial phases of the hydrolysis or enzymatic digestion of albumins.
• Albumose — A term utilized in older biochemical nomenclature to designate proteoses, a group of soluble macromolecular products resulting from the partial hydrolysis or enzymatic digestion of albumins, which do not coagulate with heat and precipitate under the action of ammonium sulfate.
• Alchemical — Pertaining to or characteristic of alchemy; specific to medieval and hermetic practices, doctrines, or texts that aimed at the transmutation of base metals into gold, the discovery of the elixir of life, or the Philosopher's Stone. In a figurative sense, the term describes a mysterious, secret, fascinating process or a profound spiritual transformation achieved through hidden or hard-to-understand methods.
• Alchemy — A mystical and hermetic science and doctrine that preceded modern chemistry, widely practiced in Antiquity and the Middle Ages, with the primary objectives of transmuting base metals into gold or silver, discovering a universal panacea, and obtaining the Philosopher's Stone. In a metaphorical sense, it denotes a profound, mysterious transformation or a perfect fusion between abstract elements, feelings, or ideas.
• Aleijadinho — The nickname and established artistic name of Antônio Francisco Lisboa, a famous Brazilian sculptor and architect from the colonial period, recognized as the greatest representative of the Baroque and Rococo styles in Latin America. Despite a severe degenerative disease that deformed his hands and feet, he sculpted monumental masterpieces in wood and soapstone, his name literally meaning 'The Little Cripple' in Portuguese.
• Selected rock — A very rare regional term designating a piece of cliff or hard stone manually selected or carved to be used as an elementary construction material for house foundations, traditional fences, or as a boundary stone. In a figurative sense, it can describe a resilient, steadfast person, considered the pillar of a community.
• Aleurolite — A consolidated detrital sedimentary rock formed through the cementation and diagenesis of aleurite (fine mineral dust, chiefly quartzous). The dimensions of its component grains are intermediate between those of sandstones and argillites, ranging from 0.002 to 0.06 millimeters. It often exhibits fine stratification and is used in geology to reconstruct ancient fossil or lacustrine sedimentary environments.
• Alexandrite — A rare and highly valuable variety of chrysoberyl (beryllium aluminate) containing traces of chromium, characterized by the remarkable property of changing color depending on the lighting conditions (pleochroism). The gemstone appears emerald-green or bluish-green in natural daylight and shifts to raspberry-red, purplish, or violet under incandescent artificial light.
• Archaic alchemy — An old, archaic, or regional phonetic variant for alchemy; a medieval protoscience and philosophical-esoteric discipline combining elements of chemistry, metallurgy, astrology, and mysticism. In old texts, it tracked the secret practice of metal transmutation.
• Archaic alchemist — An old, archaic, or regional phonetic variant for alchemist; a person from the Middle Ages or Renaissance who practiced alchemy, seeking the transmutation of base metals into gold or silver via the philosopher's stone. In ancient literature, it described court scholars manipulating primitive chemicals.
• Aliquot — A specialized term used in acoustics and music to describe an aliquot part of a vibrating string or air column that produces an upper harmonic sound (aliquot tone). In organology and instrument making, it defines the system of aliquot (resonating) strings added to certain pianos (Blüthner system) or violins (like the viola d'amore), which are not struck directly but vibrate freely by sympathy, enriching the musical timbre.
• Almandine — A silicate mineral representing the most widespread and common species of the garnet group, featuring a characteristic deep red, purplish-red, reddish-brown, or black color, containing iron and aluminum. It crystallizes in the cubic system, has a vitreous luster, and high hardness (7-7.5 on the Mohs scale), with its transparent varieties utilized since antiquity as semi-precious gemstones in jewelry and opaque ones as industrial abrasives.
• Almas — A term borrowed from Oriental languages (from Turkish or Arabic - 'almas' / 'almás') historically or comparatively used to denote a diamond or a gemstone of exceptional hardness and brilliance; in geography, it represents a spelling variant without diacritics for 'Almaș', a river and historical region in Transylvania (Romania), rich in archaeological remains and folklore traditions.
• Allochems — Organized structural components of carbonate origin that formed by chemical precipitation or biological activity within a sedimentary basin and underwent local transport before final deposition; they include ooids, bioclasts, intraclasts, and peloids, representing the major constituent elements of many limestone rocks according to Folk's classification.
• Allochore — A term used to describe an organism, particularly a plant or vegetable species, dispersed into territories outside its native range through external, non-biological, or accidental dispersion means (such as human activity, wind, or water currents). In structural ecology, it defines allochthonous species introduced into a new habitat, where they may become naturalized or invasive.
• Alunite — A natural mineral from the class of hydrated sulfates, structurally composed of a basic aluminum and potassium sulfate, having the chemical formula KAl3(SO4)2(OH)6. Historically called alumstone, it occurs as granular, fibrous masses or white, grayish, or reddish rhombohedral crystals, used on an industrial scale for extracting alum and aluminum.