#allomorph

• Allomorph — In linguistics, a contextual, positional, or formal variant of a morpheme that retains its core semantic identity and grammatical function, but alters its phonetic structure based on neighboring sounds. In mineralogy, it describes a mineral that has changed its internal crystalline structure without altering its outer raw chemical composition.
• Allomorphy — The property, state, or structural phenomenon consisting of the existence of multiple allomorphs for the same morpheme or structural element. In linguistics, it represents the formal variation of grammatical units depending on the phonetic or syntactic context, while in natural sciences (chemistry/geology) it defines the ability of substances to present in different crystalline forms while maintaining composition.
• Allomorphism — A state or structural property consisting of the coexistence or manifestation of multiple formal variants or allomorphs of the same basic element. In linguistics, it represents the set of phonetic and positional variations of a morpheme within inflection or derivation, while in mineralogy it defines the property of identical chemical substances to crystallize in different systems under the influence of temperature and external pressure.
• Allomorphosis — A direction or phase of the evolutionary process (allophorosis) characterized by the emergence of local morphological adaptations or structural changes specific to a certain living environment, without these determining an increase or decrease in the species' general level of biological organization. This structural adaptive mechanism allows organisms to colonize new ecological niches by reconfiguring pre-existing organs.