subplacentan.

Brit.

/ˌsʌbpləˈsɛntə/, U.S.

/ˌsəbpləˈsɛn(t)ə/

Origin: A borrowing from Latin. Etymon: Latin subplacenta.

Etymology: < post-classical Latin subplacenta (1624 or earlier) < classical Latin sub- sub- prefix + post-classical Latin placenta placenta n.

Zoology.

A structure located on the maternal side of the placenta; spec. that found in hystricomorph rodents, formed by the trophoblast, containing spaces filled with fetal blood, and possibly having a hormone-secreting function.

ΘΚΠ

the world > animals > mammals > [noun] > parts of > placenta and related parts

glean1601

placenta1638

subplacenta1807

trophocalyx1889

trophodisc1889

trophosphere1889

trophospongia1889

1807 W. Lawrence tr. J. F. Blumenbach Short Syst. Compar. Anat. xxv. 465 In several species of digitated mammalia the external surface of the placenta is provided with a white and apparently glandular body (corpus glandulosum Everardi, or subplacenta), smaller than the proper placenta, by which it is inclosed.

1889 C. S. Minot in Jrnl. Morphol. 2 360 Its fundus is the sub-placenta (Ercolani's cotyledonary organ).

1961 Jrnl. Anat. 95 457 Lacking this essential basis of facts, previous writers..attributed the origin of the subplacenta to the uterine or decidual tissues.

1990 Jrnl. Developmental Physiol. 14 96/2 The uterine horns were opened and the main placentas (in the text referred to as placentas) were detached from the subplacentas.

2003 B. W. Baker & E. P. Hill in G. A. Feldhamer et al. Wild Mammals N. Amer. (ed. 2) xv. 289/2 During pregnancy, beaver have a subplacenta located between the placenta and uterine tissues.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).

单词	subplacenta
释义	subplacentan. Brit. /ˌsʌbpləˈsɛntə/, U.S. /ˌsəbpləˈsɛn(t)ə/ Origin: A borrowing from Latin. Etymon: Latin subplacenta. Etymology: < post-classical Latin subplacenta (1624 or earlier) < classical Latin sub- sub- prefix + post-classical Latin placenta placenta n. Zoology. A structure located on the maternal side of the placenta; spec. that found in hystricomorph rodents, formed by the trophoblast, containing spaces filled with fetal blood, and possibly having a hormone-secreting function. ΘΚΠ the world > animals > mammals > [noun] > parts of > placenta and related parts glean1601 placenta1638 subplacenta1807 trophocalyx1889 trophodisc1889 trophosphere1889 trophospongia1889 1807 W. Lawrence tr. J. F. Blumenbach Short Syst. Compar. Anat. xxv. 465 In several species of digitated mammalia the external surface of the placenta is provided with a white and apparently glandular body (corpus glandulosum Everardi, or subplacenta), smaller than the proper placenta, by which it is inclosed. 1889 C. S. Minot in Jrnl. Morphol. 2 360 Its fundus is the sub-placenta (Ercolani's cotyledonary organ). 1961 Jrnl. Anat. 95 457 Lacking this essential basis of facts, previous writers..attributed the origin of the subplacenta to the uterine or decidual tissues. 1990 Jrnl. Developmental Physiol. 14 96/2 The uterine horns were opened and the main placentas (in the text referred to as placentas) were detached from the subplacentas. 2003 B. W. Baker & E. P. Hill in G. A. Feldhamer et al. Wild Mammals N. Amer. (ed. 2) xv. 289/2 During pregnancy, beaver have a subplacenta located between the placenta and uterine tissues. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1807
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