#irregular
- Aksak rhythm — An ethnomusicological term of Turkish origin (meaning 'limping') structurally utilized to define a special class of asymmetrical (divisional) musical rhythms, characterized by the unequal alternation of binary and ternary beats (for instance, 5/8, 7/8, 9/8, or 11/8 meters); as an adjective, it describes a traditional dance, folk melody, or rhythmic structure featuring this specific, alternating pulsation. This complex metric system forms the foundation of musical folklore in the Balkan Peninsula, Turkey, and the Near East, being theorized in Romania under the name of asymmetrical rhythm or rhythmaksak.
- Anfractuous — Presenting deep irregularities, sinuous cavities, deep cracks, or twisting turns; characterized by a rugged and difficult-to-access surface. In a topographic sense, it describes a rocky relief full of narrow valleys and precipices, while in anatomy, it refers to an organic structure provided with deep convolutions or irregular grooves, such as the cerebral cortex.
- Anisomenorrhea — A menstrual cycle disorder characterized by marked irregularity in the intervals between periods, often associated with unpredictable variations in duration and hemorrhagic flow. This clinical phenomenon is caused by endocrine imbalances, dysfunctions of the hypothalamo-pituitary axis, or structural ovarian diseases, requiring gynecological monitoring to exclude systemic pathologies.
- Anisuria — A clinical symptom manifested by irregular and extreme variations in the volume of urine excreted within equal time intervals or from day to day, without correlated changes in fluid intake. This structural excretory imbalance indicates dysfunctions of the renal parenchyma, disruptions in antidiuretic hormone secretion, or instability in glomerular filtration mechanisms, requiring complete urological and metabolic evaluation.
- Anomalous — Exhibiting an anomaly, deviating from the norm, from the rule, or from natural laws of development; irregular, unusual, abnormal, or atypical. In medicine, it describes a malformed or asymmetric structure, organ, or function. In grammar, it refers to words (especially verbs) whose inflectional paradigms exhibit major deviations or structural irregularities compared to standard conjugation.
- Anomalous — The masculine plural form of the adjective 'anomal'; exhibiting anomalies, structural irregularities, or obvious deviations from natural rules, laws, or developmental patterns. In linguistics, it describes asymmetric lexical elements or terms (such as irregular verbs in classical languages) that do not follow the established paradigms for their morphological class.
- Anomaly — A deviation from a norm, from a rule, or from natural laws of development; irregularity, strangeness, structural or functional non-conformity. In medicine, the term denotes a congenital malformation, anatomical asymmetry, or biological disruption present from birth. In astronomy, it represents a structural angle used to determine the exact position of a celestial body on its elliptical orbit relative to the periastron.
- Anomaliflorous — Having anomalous, irregular, or asymmetric flowers; characteristic of plants whose floral elements (petals, sepals, or stamens) exhibit major structural or morphological deviations from the standard symmetrical pattern of their genus or family. This botanical epithet or descriptor is used rarely, especially to define monstrous varieties, teratological mutations, or hybrid evolutionary adaptations.
- I appear — A regional, hybrid, or archaic verbal form sometimes used in popular dialects as an equivalent for the present indicative of the verb 'apărea' (meaning to appear) or structurally derived through morphological confusion with the fourth conjugation pattern ending in the suffix '-esc'. It reflects an archaic dynamic of adapting visual movement forms in spoken speech.
- You press — A regional, hybrid, or non-standard verbal form used in certain dialects of the Romanian language as a variant for the second-person singular present indicative of the verb 'apăsa' or as an analogical derivative influenced by the fourth conjugation class. It designates the action addressed directly to an interlocutor of exerting physical pressure or overwhelming someone emotionally.
- Arrhythmic — Lacking rhythm, cadence, or regularity; occurring or performing in an irregular, jerky, or discontinuous manner. In medicine, the term is primarily used to describe a pulse or heartbeat that deviates from the normal cardiac frequency, while in music or literature it indicates a faulty composition or execution that fails to respect the established meter or rhythmic structure.
- Arrhythmicity — The quality, state, or character of being arrhythmic; the total or partial absence of rhythm, cadence, or regularity in the development of a biological, physical, or mechanical phenomenon. In a clinical context, it represents a pathological structural manifestation describing the instability of physiological frequencies, analyzed in detail using diagrams and monitoring devices.
- Arrhythmia — A disruption of the normal heart rhythm, characterized by an alteration in the frequency, regularity, or sequence of cardiac contractions. This structural and electrophysiological anomaly occurs when the electrical impulses that coordinate heartbeats do not function properly, causing the heart to beat too fast (tachycardia), too slow (bradycardia), or completely irregularly (such as atrial fibrillation).
- Asymmetric — Not symmetrical, lacking symmetry; presenting an unequal, disproportionate, or irregular arrangement of component elements relative to a central axis, point, or plane. In a structural sense, it describes a geometric configuration, an artistic design, or a physical phenomenon characterized by the lack of exact shape correspondence.
- atacto- — A linguistic combining form derived from the Ancient Greek 'ataktos' (disordered, irregular), used in international scientific terminology (especially in botany, anatomy, and polymer chemistry) to form words designating a structure lacking order, an irregular arrangement of organs, or a chaotic and asymmetrical molecular configuration.
- Azygomorphic — Possessing an asymmetrical or irregular structure that cannot be divided into symmetrical halves by any median vertical plane; a term used especially to describe flowers or plant organs completely lacking bilateral or radial symmetry planes.