lordosis noun. [lɔ:'dǝʊsɪs] Pl. -doses [-'dǝʊsi:z]. E18.
[mod. Latin from Greek lordōsis, from lordos bent backwards: see -OSIS.]
1. Medicine. (Abnormal) inward curvature of the spine causing increased concavity of the back. Cf. KYPHOSIS, SCOLIOSIS. E18.
2. Zoology. A posture assumed by some female mammals during mating, in which the back is arched downwards; the assumption of such a posture. M20.

■ lordotic [-'dɒtɪk] adjective M19.

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