unrectified

Unrectified is an adjective meaning not rectified; not corrected, amended, or straightened. It derives from the verb rectify, which comes from Latin rectus meaning straight or correct.

In technical contexts, unrectified describes material or signals that have not undergone a rectification process. For example, an unrectified electrical signal is an alternating current waveform that has not been converted to direct current by a rectifier, leaving the original positive and negative portions intact. In data and imagery, unrectified data or images have not been geometrically corrected to align with a geographic coordinate system or map projection, leaving distortions from sensor geometry, terrain, or perspective.

In geometry and related mathematics, rectification is a specific operation on polyhedra or figures that alters their structure. An unrectified polyhedron, in this sense, has not undergone the rectification process. The term is mainly used within mathematical descriptions of polyhedra and related transformations, and it is less common outside specialized discourse.

In general usage, unrectified can also describe issues, claims, or representations that have not yet been corrected or resolved, though this sense is broad and context-dependent.

See also: rectification, rectified, rectifiable. The term remains relatively specialized; its precise meaning depends on the field, with common threads being the absence of a corrective or straightening transformation.