#bacteri

• Ambazone — A synthetic organic chemical compound of the thiosemicarbazone class, used in medicine as a potent local antiseptic and bacteriostatic agent, especially for treating acute infections of the oral cavity and pharynx. It acts by inhibiting pathogen replication.
• Amphitrichous — Having flagella or cilia arranged in tufts or clusters at both extremities of the cell; a morphological term typically used in microbiology to describe amphitrichous bacteria, whose locomotion and structural dynamics are facilitated by opposite polar cilia.
• Amphitrichous — An orthographic variant of the term 'amfitrih'; describing a bacterial cell or microorganism that possesses cilia or flagella arranged in tufts at both polar extremities. This morphological structure ensures efficient bidirectional mobility in liquid media with high viscosity.
• Tonsillitis — An acute or chronic inflammation of the palatine tonsils, caused by a viral or bacterial infection (frequently group A beta-hemolytic streptococcus). This structural pathology manifests clinically through severe odynophagia, dysphagia, fever, cervical adenopathy, and swelling of the lymphoid tissue, requiring differential diagnosis to determine the appropriateness of antibiotic treatment.
• Amylobacter — A generic name for an anaerobic bacterium, often belonging to the genus Clostridium (such as Clostridium butyricum), capable of fermenting starch and other polysaccharides in the absence of oxygen. This microorganism plays an essential structural role in the natural decomposition of plant matter and in the industrial production of butyric acid or solvents, having the property of accumulating starch inclusions inside its cell.
• Amniotitis — An acute or chronic inflammation of the amniotic membrane, usually caused by an ascending bacterial infection from the vaginal tract following membrane rupture or during prolonged labor. This pathological condition is closely correlated with chorioamnionitis and represents a major risk for neonatal infection or preterm birth.
• 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.
• Amoxicillin — A semisynthetic antibiotic substance of the beta-lactam class, derived from penicillin, featuring a broad spectrum of antimicrobial activity against Gram-positive and Gram-negative bacteria. It acts by inhibiting bacterial cell wall synthesis during replication, being widely used in clinical practice to treat acute respiratory, urinary, cutaneous, or otorhinolaryngological infections.
• Ampicidul — The definite articulated form of the neuter noun 'ampicid', a historical or regional commercial name assigned to an antibiotic medication based on ampicillin, utilized for destroying and inhibiting the growth of a wide range of pathogenic bacteria. As a bactericide from the penicillin group, it structurally acts by blocking bacterial cell wall synthesis, being prescribed in treating sensitive acute respiratory, urinary, and gynecological infections.
• Ampicillin — A semi-synthetic antibiotic substance from the penicillin group, featuring a broad spectrum of activity, acid-stable but inactivated by beta-lactamases; it is widely utilized in medicine to treat various bacterial infections caused by susceptible microorganisms, acting by inhibiting bacterial cell wall synthesis during replication. It represents one of the most essential antimicrobial drugs included in fundamental therapeutic lists globally.
• Anaerobic — Said of organisms (bacteria, fungi) that can live, develop, or carry out their structural vital processes in the absence of free molecular oxygen; it also describes biochemical processes (fermentation, cellular respiration) taking place without the participation of oxygen. In sports physiology, it qualifies intense, short-duration physical efforts where energy is produced by breaking down carbohydrates without additional oxygen supply.
• Anaerobiosis — A form of life, condition, or mode of existence of certain microorganisms that structurally develop in an environment completely devoid of free molecular oxygen. This biological phenomenon forms the basis of archaic energy metabolism processes, being essential in various isolated ecosystems, wastewater treatment (anaerobic digestion), and food fermentation industries.
• Anaerobiont — A microorganism or lower organism that lives and structurally develops exclusively in an environment devoid of free molecular oxygen. This type of organism, primarily represented by denitrifying, methanogenic, or sulfate-reducing bacteria, obtains the energy required for its vital functions through alternative metabolic processes such as fermentation or anaerobic respiration.
• Anaerobe — A phonetic variant or outdated noun form for the term 'anaerob' (anaerobe); a microorganism, cell, or lower organism capable of living and structurally multiplying in an environment devoid of molecular oxygen. As an adjective, it describes biochemical processes or anoxic ecological environments where metabolism relies exclusively on alternative energy pathways that do not involve oxygen.
• Avirulent — Regarding microorganisms (bacteria, viruses): devoid of virulence or pathogenicity; lacking the structural capacity to trigger an infectious disease in the host organism. In a technical sense, it describes microbial strains artificially attenuated in the laboratory or natural mutants, frequently used as active agents in the production of live attenuated vaccines.
• Anoxybiotic — Developing, living, or carrying out metabolic processes exclusively in the absence of free molecular oxygen; characteristic of anaerobic organisms or airless environments. In microbiology and structural ecology, the term qualifies anoxybiotic (or obligate anaerobic) bacteria and the biochemical processes of fermentation or decomposition taking place in deep sediments, stagnant marine basins, or the digestive tract of animals.
• Antibacterial — A medication, chemical substance, or biological agent capable of destroying bacteria (bactericidal effect) or suppressing their growth and multiplication (bacteriostatic effect), spanning antibiotics, antiseptics, and sanitizers.
• Anti-cavity — Preventing, combating, or halting the onset and progression of dental caries; a chemical substance, active ingredient (such as fluoride or xylitol), or oral hygiene product (toothpaste, mouthwash) structurally formulated to protect dental enamel against bacterial demineralization and corrosive acids.
• Unhygienic — Contrary to the rules of hygiene and sanitary regulations; endangering public or individual health by favoring the development of microbes, bacteria, or parasites. In a structural sense, it describes insalubrious work environments, deficient cleaning practices, or behaviors that can trigger infectious outbreaks.
• Anti-infective — Preventing, combating, destroying, or halting the multiplication of pathogenic agents responsible for triggering an infection (bacteria, viruses, fungi, or protozoa); a synthetic medication or natural remedy capable of sterilizing an infectious focus. In a clinical sense, it includes antibiotics, antivirals, antifungals, and topically applied antiseptics.