#textbook
- Abbas textbook of immunology — In a medical and academic context, the term refers to Dr. Abul K. Abbas, an internationally renowned pathologist and immunologist, co-author of the landmark textbook 'Robbins & Cotran Pathologic Basis of Disease' and 'Cellular and Molecular Immunology'. His name is synonymous with core teaching models of cellular immunology, immune tolerance, and T-cell activation.
- Archaic spelling primer — An old regional variant for the word 'abecedar' (primer, elementary textbook), used in Transylvania and Banat during the 18th and 19th centuries. In the context of medical history and public hygiene, the term also referred to elementary booklets or primary health guides distributed in rural schools, teaching the basic rules of body hygiene, cholera prevention, and smallpox vaccination.
- Abecedar (archaic variant) — An archaic and obsolete regional variant of the noun 'abecedar'. It denotes the elementary textbook historically used for learning how to read and write. The form preserves a hybrid pronunciation influenced by the early integration of the word into local dialects.
- Aldeide — An old or regional orthographic variant for the term 'aldehyde'; an organic compound characterized by the presence of the carbonyl functional group (-CHO) bonded to a hydrocarbon radical or a hydrogen atom. Although current standards of the Romanian Academy mandate the spelling with 'h', this form is still found in early technical textbooks or vintage translations.
- Amfilohie Hotiniul — A Romanian Enlightenment bishop, scholar, translator, and educator (c. 1730–1800), originally from Moldavia and hierarch of Khotyn. He is historically recognized for authoring and translating some of the earliest school textbooks in the Romanian language within the Principalities, establishing the foundations of national scientific terminology in fields such as geography (including one of the first geographical treatises printed in Romanian), arithmetic, and dogmatic theology.
- Anarchism — An archaic, regional, or foreign spelling variant (influenced by Slavic or Germanic languages) utilized in some historical documents or old political maps for the noun 'anarhism' (anarchism). It designates the political doctrine that structurally rejects coercive state authority, advocating for a horizontal society based on self-managed local communities and free agreements between individuals.
- Anthology — A compilation of selected literary pieces (poems, prose, essays, dramatic fragments) belonging to several authors or to a single author, chosen on the basis of well-defined aesthetic, thematic, chronological, or geographical criteria. This structural philological and editorial tool aims to provide a representative qualitative synthesis of an era, a cultural movement, or a specific literary genre.
- Arithmetical — An archaic or regional adjectival form used in the past as a synonym for the modern term 'arithmetic'; relating to arithmetic, based on numerical calculation or the properties of numbers and elementary operations. This structural term is found in old mathematics textbooks or historical documents to describe rules, proportions, operations, or numerical progressions.