lordosis
/lɔːˈdəʊsɪs/noun
mass noun
1- Medicine excessive inward curvature of the spine【医】脊柱前凸（症）。比较KYPHOSIS.
1.1
- a posture assumed by some female mammals during mating, in which the back is arched downward（某些雌性动物交配时的）凹背姿势。
派生词
lordotic
adjective词源
early 18th cent.: modern Latin, from Greek lordōsis, from lordos 'bent backwards'.