An alternative medical term for agenesis; the congenital absence or incomplete development of an organ or anatomical structure.
Greek a- (without) + genesis (creation) + -ia (condition); variant form emphasizing the pathological state rather than the mere absence.
Medical terminology sometimes uses -ia endings to emphasize a condition is actually pathological—'agenesia' sounds more like a disease state than simply 'agenesis,' reflecting how doctors frame developmental problems.
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