lumbarization

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noun

A spinal anomaly in which the first and second segments of the sacrum do not fuse, and consequently the lumbar spine appears to have six vertebrae or segments, not five, while the sacrum appears to have only four.

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Meanings

nounlumbarization (countable and uncountable, plural lumbarizations)

plural lumbarizations

  1. countableuncountableA spinal anomaly in which the first and second segments of the sacrum do not fuse, and consequently the lumbar spine appears to have six vertebrae or segments, not five, while the sacrum appears to have only four.

Origin

From lumbar + -ization.

Full word history & related roots →
Cite this entry
APA

lumbarization. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/lumbarization

MLA

“lumbarization.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lumbarization. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “lumbarization,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/lumbarization.

Source: lumbarization on Wiktionary, CC BY-SA 4.0.