reunakalvo
Reunakalvo is an Estonian term meaning “edge membrane” or “boundary membrane.” It refers to a thin enclosing layer that separates a structure from its surroundings, often serving to protect, delimit, or regulate exchange. The word is formed from reun- “edge, border” and kalvo “membrane,” making it a descriptive label rather than a specific anatomical term.
In use, reunakalvo is a generic descriptor used across disciplines to denote boundary membranes around various
Because reunakalvo is a broad linguistic label, its functionality varies—from protection and containment to selective transport