#fiber

• Abaca — A textile plant of the banana family (Musa textilis), cultivated in the Philippines, whose leaves yield a highly durable vegetable fiber (Manila hemp). In the field of medical and pharmaceutical materials, fine abaca fibers are utilized in moisture-resistant filtration layers, for manufacturing sterile medicinal tea bags, special laboratory filter papers, and certain biodegradable protective textiles.
• Abiolan — An old commercial and industrial term used in the 20th century to denote a type of synthetic textile fiber or insulating material manufactured through chemical processes, characterized by high resistance to environmental factors and used in the production of technical yarns or fabrics.
• To refine — 1. To separate a metallic mass, alloy, or molten glass from impurities using chemical, thermal, or electrolytic methods to increase its purity. 2. To thin wool or cotton fibers during processing. 3. A regional singular form for 'afină' (bilberry fruit).
• Agava — The common name of monocotyledonous xerophytic plants within the genus Agave, native to the arid and semi-arid regions of the Americas, particularly Mexico. These plants are structurally characterized by a dense rosette of large, fleshy, rigid leaves, often tipped with sharp spines, and a gigantic, spectacular inflorescence that appears only once at the end of the plant's life cycle, cultivated worldwide for textile fibers, alcoholic beverage production, or as ornamental plants.
• Alcantara — A registered trademark of composite synthetic microfiber textile material (polyester and polyurethane), renowned for its appearance and texture resembling suede leather. It is widely utilized in premium automotive upholstery, fashion apparel, interior furniture, and tech accessories due to its durability, wear resistance, and superior grip. Historically and geographically, the term also refers to a famous Roman bridge and municipality in the Cáceres province, Spain, derived from the Arabic 'al-qanṭarah' (the bridge).
• Alpaca — A domestic, medium-sized ruminant mammal of South America (Vicugna pacos), belonging to the Camelidae family, bred for its long, fine, and silky wool. In the textile industry, it represents the high-quality fabric or yarn obtained from this animal; in metallurgy, it defines an alloy of copper, zinc, and nickel (German silver), with a bright white appearance, used for manufacturing cutlery and decorative items.
• Unmyelinated — Lacking a myelin sheath; a nerve fiber or axon devoid of the protective, insulating structural lipid layer. Amielinic (unmyelinated) fibers (such as type C fibers) are characterized by a significantly slower nerve impulse conduction velocity compared to myelinated ones, playing an essential functional role in transmitting dull pain sensations, temperature, and regulating autonomic nervous system connections.
• Anaphase — The third consecutive stage of the cell division process (mitosis or meiosis), structurally characterized by the abrupt separation and simultaneous migration of sister chromatids or homologous chromosomes toward the opposite poles of the cell. This mechanical and biological phenomenon, coordinated by the contraction of the mitotic spindle fibers, guarantees the perfectly equal and exact distribution of the duplicated genetic material to the two future daughter cells.
• Angioscopy — A minimally invasive medical imaging investigation method consisting of the direct and structural visualization of the interior of blood vessels (lumen and endothelium) using an angioscope introduced via catheterization. This well-defined clinical procedure allows surgeons and interventional cardiologists to inspect in real time the morphology of atheromatous plaques, the presence of microthrombi, or the integrity of intraoperative vascular sutures.
• Areolar — Belonging or relating to an areola, or exhibiting small structural spaces, networks, or cavities. In anatomy and histology, the term is fundamentally utilized to describe loose (areolar) connective tissue, characterized by a structural mesh of elastic and collagen fibers leaving open spaces between them, playing an essential role in supporting organs, binding skin to underlying muscles, and allowing nutrient diffusion.
• Argyrophilic — Having a high chemical affinity for or binding silver salts; a cell, organic tissue, or microscopic structure (such as reticulin fibers) capable of partially reducing silver ions following appropriate chemical pretreatment, acquiring an intense black or brown color. In a histological sense, argyrophilic elements are essential for highlighting fine anatomical details of the nervous system or connective networks within internal organs.
• Bristling — The act of bristling or becoming like a hedgehog and its result; a process through which the surface of a material, a fabric, or hair strands become rough, rigid, bristly, or raised upward, structurally recalling the appearance of hedgehog spines. In metallurgy or mechanics, the term can describe the formation of small asperities, burrs, or sharp irregularities on a part's surface due to faulty thermal or mechanical processing.
• Pearl barley — A food product obtained by dehusking, polishing, and sometimes partially milling cereal grains, typically wheat, barley, or millet. It is widely used in traditional Romanian gastronomy as the core ingredient for colivă, dense soups, or puddings.
• Arteriși — A rare regional or archaic popular name found in certain Romanian dialects to designate fine ramifications of roots, threads, or thin plant stems that structurally resemble the network of arteries and blood vessels. In ethnobotany, the term described the fibrous texture of certain medicinal herbs traditionally used by village healers to improve circulatory diseases, based on the principle of natural shape similarity.
• Arthroscope — A rigid or flexible endoscopic instrument equipped with a fiber-optic system and a miniature video camera, introduced through a microscopic incision directly into a joint cavity. This high-tech medical device allows the visualization of all internal anatomical structures on an external monitor at maximum resolution, serving both for diagnostic purposes and as a visual guide during minimally invasive surgeries.
• Asbestos — An older spelling form, lexical variant, or neologism used for 'azbest' (asbestos), designating a group of naturally occurring silicate minerals with a fibrous structure, remarkable for their extreme resistance to high temperatures, fire, acids, and mechanical traction. In the past, due to its excellent structural insulating qualities, it was widely used in the construction and protective equipment industries, being subsequently restricted due to the high toxicity of its fibers upon inhalation.
• Asbestos-cement — A composite, insulating, and fireproof building material historically manufactured from a structural mixture of asbestos fibers bonded with cement, magnesite, or other organic or mineral binders. This industrial product was widely used in the form of sheets or protective coatings due to its outstanding resistance to high temperatures and mechanical actions, but its modern production and use have been completely banned due to the severe toxicity of inhaled dusts.
• Bagasse — The dry, pulpy, fibrous material that remains after crushing sugarcane, sorghum, or agave stalks to extract their juice. It is extensively used as an eco-friendly biofuel for generating heat and electricity, as well as a raw material in pulp, paper, and sustainable construction board manufacturing.