lordosis

lor·do·sis

noun \lȯr-ˈdō-səs\

plural lor·do·ses\-ˈdō-ˌsēz\

Definition of LORDOSIS

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

— lor·dot·ic \-ˈdä-tik\ adjective

Origin of LORDOSIS

New Latin, from Greek lordōsis, from lordos curving forward; akin to Old English belyrtan to deceive

First Known Use: 1704

Rhymes with LORDOSIS

cirrhosis, hypnosis, kenosis, meiosis, miosis, mitosis, narcosis, necrosis, neurosis, orthosis, osmosis, prognosis, psychosis, sclerosis, stenosis, thrombosis