| 释义 |
‖ lordosis Path.|lɔːˈdəʊsɪs|
[mod.L., a. Gr. λόρδωσις, f. λορδός bent backward.]
a. Anterior curvature of the spine, producing convexity in front (occurring as a physical deformity).
1704Harris Lex. Techn., Lordosis, by some Writers, is the Term for the bending of the Back-bone forwards in Children, &c. 1822–34Good's Study Med. (ed. 4) IV. 249 Lordosis, imported procurvation of the head and shoulders or anterior crookedness. 1894Lancet 3 Nov. 1030 Very extreme lordosis is present. 1899Allbutt's Syst. Med. VII. 165 A lordosis was very evident.
b. A temporarily assumed posture, characteristic of some female mammals during mating, in which the back is arched downwards; the assumption of such a posture.
1941Endocrinology XXIX. 411 Two males exhibited lordosis and hopping behavior typical of the sexually-receptive female [rat]. 1947Physiol. Rev. XXVII. 243 Some female rats in heat display lordosis each time they are mounted by the male. 1965Science 15 Jan. 306/3 Frequency of lordosis, ear-wiggling, and crouching (all indications of receptivity) were recorded. 1968M. Diamond Perspectives in Reproduction & Sexual Behavior xx. 321 Normal males [sc. rats] rarely exhibit lordosis. 1971New Scientist 13 May 370/3 The rats with no sense of smell were much more likely to show the typical lordosis (a posture where the belly is lowered and the rump stuck up in the air) that is normal in sexually receptive animals.
Hence lordotic |-ˈɒtɪk| a. [see -otic], pertaining to or affected with lordosis.
1856in Mayne Expos. Lex. 1971New Scientist 13 May 370/3 With these animals removal of both olfactory lobes increased the likelihood of going into a lordotic posture. 1972Science 5 May 519/1 After a 9-hour delay, the typical lordotic reactions and sticky estrous discharge had generally disppeared. |