lordosis.
The normal concave, backwards curvature of the spine in the cervical and lumbar regions.
Meaning & usage
The normal concave, backwards curvature of the spine in the cervical and lumbar regions.
An abnormal excessive concave, backwards curvature of the spine, causing in normal human physiology a hollow in the back (lumbar lordosis, hollow back, saddle back) or the neck (cervical lordosis).
A body posture of some female mammals, indicating receptivity to copulation. It involves lowering of the forelimbs but with the rear limbs extended and hips raised, ventral arching of the spine and a raising, or sideward displacement, of the tail.
Where this word comes from
Etymology tree Ancient Greek λορδός (lordós) Proto-Indo-European *-tis Proto-Hellenic *-tis Ancient Greek -τῐς (-tĭs) Ancient Greek -σῐς (-sĭs) Ancient Greek -ωσις (-ōsis)bor. New Latin -ōsislbor. English -osis English lordosis From Ancient Greek λορδός (lordós, “bent backward”) + English -osis.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.