ühesuunalise

Ühesuunaline is an Estonian adjective meaning unidirectional or one-way. It is used to describe systems, processes, or signals that move or operate in a single direction, as opposed to bidirectional or multidirectional arrangements.

Etymology and forms: The term is formed from the elements for “one” and “direction” with the common attributive suffix that yields an adjective describing directional properties. In Estonian, adjectives decline to reflect case and number. The form ühesuunalise is the genitive singular, for example in compounds such as ühesuunalise voolu (of a unidirectional flow) or ühesuunalise signaali (of a unidirectional signal). Other forms include ühesuunaline (nominative) and ühesuunalist (partitive), among others.

Usage and contexts: Ühesuunaline is widely used in technical and scientific contexts. In electronics and physics it can describe directionally constrained phenomena, such as unidirectional current or unidirectional data flow. In traffic planning, a ühesuunaline tänav denotes a one-way street. The term also appears in linguistics, engineering, and information theory to denote processes or systems that operate in only one direction.

Examples: A ühesuunalise voolu design emphasizes flow that cannot reverse direction. A ühesuunalise signaali network ensures signals travel in a single prescribed path. In everyday language, one might refer to a ühesuunaline liikumine (one-way movement) in a crowd-control context.

See also: kahepoolne (two-way) and ühesuunaline juhtivus or bidirectional and unidirectional concepts in related fields. The English equivalents are unidirectional and one-way, often used in technical documentation.