| 释义 |
postmaˈture, a.
[f. post- B. 1 b; cf. premature a.]
1. Obstetrics. = post-term a.
1895F. A. Stahl in Amer. Jrnl. Obstetr. & Dis. Women XXXI. 843, I take the liberty of suggesting the adoption of the term postmature labor to apply to labor which takes place after term. 1937Amer. Jrnl. Obstetr. & Gynecol. XXXIV. 37 When pregnancy is prolonged by new corpora lutea or by progesterone, large postmature fetuses are produced. 1972S. B. Korones High-Risk Newborn Infants iv. 89 Approximately 75% to 85% of all deaths among postmature babies occur during labor.
2. Pertaining to or designating a person who is over the age of maturity.
1897A. D. L. Napier Menopause iv. 79 In the post⁓mature woman it is partly in the early senile changes that we must look for a solution of the climacteric. 1941J. S. Huxley Uniqueness of Man i. 19 A large proportion of the leaders of the community are always post-mature. 1971Biochim. & Biophys. Acta CCXXXVI. 458 (heading) Evidence for progressive, age-related structural changes in post-mature human collagen.
Hence postmaˈturely adv.; postmaˈturity, the state of being postmature.
1902Jrnl. Obstetr. & Gynæcol. II. 524 Neither the dimensions of the fœtus, nor the degree of development of his tissues and organs, nor the history of the pregnancy, can be taken as certain proof of postmaturity. 1933Jrnl. Pediatrics II. 677 Similar factors of safety and stability seem to operate when the infant is postmaturely born, for in his behavior equipment he is advanced even though birth is postponed. 1937Amer. Jrnl. Obstetr. & Gynecol. XXXIV. 36 Kaern found that there was a definite relationship between postmaturity, excessive size of the fetus, and intrauterine death. 1941J. S. Huxley Uniqueness of Man i. 18 Another point in which man is biologically unique is the length and relative importance of his period of what we may call ‘post-maturity.’ 1972E. D. Morris in C. J. Dewhurst Integrated Obstetr. & Gynaecol. xxii. 383/1 Postmaturity can, in general, be said to be present when the pregnancy has continued so long beyond term that an extra risk to the foetus exists. 1977Lancet 3 Dec. 1169/2 Labour was induced, often before term, for obstetric reasons..and also for post⁓maturity—which was defined as 40 weeks plus 7 days. |