lordosis

From Ancient Greek λορδός (lordós, “bent backward”) +‎ -osis.

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• Rhymes: -əʊsɪs

lordosis (countable and uncountable, plural lordoses)

1. (anatomy) An excessive 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).

   Antonym: kyphosis

   Hyponym: swayback (abnormally, chiefly of quadrupeds)

2. (zoology) 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.

• soldiors

lordosis f (plural lordosis)

1. (anatomy) lordosis

• “lordosis”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025