Peegelduma

Peegelduma is a term used in Estonian-language discourse to denote a phenomenon of reflection or mirroring. The word is deployed in both literal and metaphorical senses, referring to processes where aspects of one thing are reproduced or echoed in another.

In optics and physics, peegelduma describes the reflection of light from surfaces. It encompasses both specular reflection, where light rays reflect in a single direction from smooth surfaces, and diffuse reflection, where rough surfaces scatter light in many directions. The concept is tied to fundamental principles such as the law of reflection and the interaction of light with material interfaces. In practical terms, peegelduma helps explain why objects appear as mirror images on polished planes, why water surfaces can produce shimmering reflections, and how coatings or textures influence visibility and color.

In cultural and social contexts, peegelduma is used metaphorically to describe mirroring effects. This includes situations where media representations, public discourse, or cultural artifacts reflect underlying social attitudes, identities, or power dynamics. The term can also describe feedback processes in which a portrayal of a group or idea reinforces perceptions that then shape further discourse or behavior.

See also: reflection, mirror image, optics, perception, media studies.

Notes and references are generally drawn from general optics textbooks for the literal sense, and from social science literature for the metaphorical use. The term is primarily used in Estonian-language texts and may be encountered with varying nuances in different disciplines.