#amorphous
- Adelomorphous — Having an undefined, vague, hidden, or structurally difficult to determine shape; lacking precise contours or a stable geometric configuration. In histology and anatomy, it describes certain epithelial cells or glandular structures whose boundaries cannot be clearly distinguished under the microscope without special staining.
- Allophane — An amorphous or poorly crystalline hydrated aluminum silicate mineral, often associated with the weathering of volcanic rocks and ash deposits in humid environments. This structural compound exhibits a variable chemical composition and a gelatinous or vitreous texture, holding significant importance in soil science due to its high cation exchange capacity and phosphate-fixing ability in andosols.
- Allophane — Minerals from the hydrated aluminum silicate class, amorphous or poorly crystalline, which form structurally through the weathering of volcanic rocks (ash and basalt) under the action of meteoric waters; they are characterized by high porosity and a large ion-exchange capacity, being specific to andosol-type soils.
- Amorphous — Lacking a definite crystalline structure or regular geometric form; a solid substance in which the constituent atoms or molecules are arranged chaotically, without long-range spatial symmetry (such as glass or pitch). In biology, it describes structures without a defined anatomical shape, and figuratively or psychologically, it applies to an energetic-less, apathetic, passive, or inert person.
- Amorphous — The feminine form of the adjective 'amorf'; lacking a definite crystalline order or a regular geometric shape. In materials science, it describes a solid substance whose constituent particles are arranged randomly, while in a figurative or characterial sense, it defines a person or an attitude devoid of dynamism, energy, willpower, or initiative.
- Amorphism — The state, property, or character of being amorphous; the total absence of an ordered crystalline structure or a regular geometric shape within a solid body. In mineralogy and crystallography, this phenomenon reflects long-range structural molecular disorder, causing isotropic properties that remain constant in all spatial directions.
- Amorfo- — A prefix or initial element of learned composition used in international scientific terminology to form new words relating to formlessness, geometric irregularity, or the amorphous state of a structure. It serves as a precise morphological indicator in naming plant genera, minerals, or physico-chemical processes.