Lordosis

медицина лордоз, искривление позвоночника вперёд (pl -ses)

Англо-русский научно-технический словарь

Lordosis

noun (plural lordoses) Etymology: New Latin, from Greek lordōsis, from lordos curving forward; akin to Old English belyrtan to deceive 1. abnormally increased inward curvature of the lower region of the spine resulting in a concave back as viewed from the side — compare kyphosis 2. a mating posture of some sexually receptive female mammals (as rats) in which the head and rump are raised and the back is arched downward • lordotic adjective

Merriam-Webster's Collegiate Dictionary