#evolution
- Apply historical variant — To apply, put into practice, adapt, or fit an element onto a surface or within a given context; a truncated verbal variant found in old Transylvanian legal or administrative documents, used as an obsolete structural equivalent of the modern verb 'to apply' or to describe the placing of a stamp or seal.
- Applied historical form — Having been applied, put into practice, fixed, or structurally sealed; a past participle form of the regional verb 'apli', used in the past to describe a document validated by a seal or an administrative decision that had already entered into force.
- Haplology — An accidental or regular phonetic modification consisting of the elimination of one of two identical or similar syllables that immediately succeed each other inside a word or at the junction between two words. This structural phenomenon of simplification tends to fluidize pronunciation, a classic example in Romanian being the evolution of certain compound or derived forms where repetitive elements are naturally dropped.
- Apocope — The act of apocopating and its result; the phonetic process through which a sound, a group of sounds, or an entire syllable drops from the end of a word. It represents a significant phenomenon in the historical evolution of Romance languages, explaining how Vulgar Latin words shortened into modern forms.
- Apomorphic — Possessing a derived trait or character, recently arisen during the phylogenetic evolution of a group of organisms and distinct from the primitive ancestral state; characteristic of modified anatomical structures or genetic sequences defining a new evolutionary branch. It constitutes the core element for establishing relatedness in modern cladistics, serving to differentiate taxa.
- Aposematism — An adaptive mechanism and defense strategy whereby certain organisms (insects, amphibians, reptiles) signal to potential predators that they are toxic, unpalatable, or dangerous, utilizing conspicuous visual cues such as bright warning coloration (red, yellow, black), contrasting geometric patterns, repellent odors, or acoustic signals. This phenomenon minimizes preying risks, as predators rapidly learn to associate these visual configurations with a negative sensory or digestive experience.
- Apposition (archaic) — An obsolete, bookish, or archaic variant of the term 'apoziție' (apposition), used in early Romanian grammars or old legal treatises to denote the explanatory pairing of two notions. It represents the historical act of placing similar lexical or conceptual elements in parallel, retaining today only a documentary or stylistic value.
- Appreciation (archaic) — An obsolete, bookish, or legal-archaic variant of the noun 'apreciere' (appreciation / evaluation), used in administrative, legislative, and literary texts of the 19th and early 20th centuries. It represents the official or mental act of evaluating, pricing, or weighing the worth, quality, or importance of an object, fact, or testimony within a trial.
- Appreciation (archaic) — An obsolete, bookish, or legal-archaic variant of the noun 'apreciere' (appreciation / evaluation), used in administrative, legislative, and literary texts of the 19th and early 20th centuries. It represents the official or mental act of evaluating, pricing, or weighing the worth, quality, or importance of an object, fact, or testimony within a trial.
- Approval (archaic) — An obsolete, bookish, or legal-archaic variant of the noun 'aprobare' (approval / authorization), used in administrative, legislative, and literary texts of the 19th and early 20th centuries. It represents the official act of endorsement, confirmation, authorization, or validation of a request, decree, or document within the bureaucratic circuit.
- Drawing near — An archaic and regional form for the noun 'apropriere' (approaching/appropriation); the act of drawing near or bringing something into spatial or temporal proximity. In ancient administrative and legal texts, the term also indicated the act of direct appropriation or the reconciliation of two litigating parties through mediation.
- Archaic close — An archaic, regional, or dialectal variant of the adjective and past participle 'apropiat'; located at a short distance in space or time, or in close relationships of kinship and friendship with someone. This form reflects ancient phonetic features of certain Romanian sub-dialects, found in medieval manuscripts and ecclesiastical texts.
- Absalon — A very rare archaic, literary, or regional form found in ancient Romanian chronicles or historical translations to refer to Absalon (biblical character or historical figure) or used regionally as a pre-modern phonetic deformation describing a type of chlamys, long soldier's cloak, or element of military gala uniform.
- Apterous — Having no wings; an organism, bird, or insect structurally lacking wings or a flight apparatus. This anatomical trait can be primitive, unchanged throughout evolution, or secondarily acquired through the regression or atrophy of wings as a specific adaptation to terrestrial, subterranean, or parasitic environments.
- Apterygidae — A family of running birds belonging to the order of ratites, of medium size, structurally lacking functional wings and a keeled sternum, possessing plumage similar to a coat of long hairs and a long beak equipped with nostrils at the tip; the order includes the kiwi bird as its representative type.
- Apterygote — An insect belonging to the subclass Apterygota, characterized by the primitive absence of wings throughout the entire evolutionary history of the group; a small arthropod organism with direct development, lacking complex metamorphosis, typically living in soil, leaf litter, or humid environments.
- Archaic toponym — A very rare archaic literary form encountered in pre-modern Romanian translations of maps or church chronicles to designate an ancient region or toponymic variation within the Greek or Mediterranean geographical sphere; a non-standard structural variant entirely obsolete in modern geography.
- Seizer — Archaic and regional form for 'apucător'; it describes a person or an instrument that grabs, seizes, or tends to appropriate goods in an aggressive or hasty manner. In old legal or administrative texts, the term referred to people who confiscated property or to those with rapacious natures.
- Archaic habit — An old phonetic or regional variant for the term 'apucătură'; it designates a habit, a behavioral trait, or a specific manner of acting. In ancient documents and local dialects, it was also occasionally used with the physical meaning of a gripping point or a method of seizing an object.
- Aquilegia — A genus of herbaceous perennial plants in the family Ranunculaceae, popularly known as 'columbine'; these structural plants are recognized by their spectacular, rarely shaped flowers equipped with long nectar spurs, being widely utilized in decorative horticulture and studied in evolutionary biology.