chorionn.
/ˈkɔːrɪən/, /ˈkɔːrɪɒn/, U.S. /ˈkɔriˌɑn/ 1. Anatomy. The outermost membrane enveloping the fœtus before birth. Also attributive, as in chorion-epithelioma = choriocarcinoma n. at chorio- comb. form 1; so chorion epitheliomatous adj.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > membranes, etc., of embryo or fetus > [noun] > membranes enclosing
houve1530
kell1530
cotyledon1540
chorion1545
coif1545
hoop-caul1545
shirt1545
caul1547
sillyhow1574
biggin1611
guard1611
allantoides1615
allantois1615
allantoid1633
amnios1657
amnion1667
heam1681
vitta1693
indusium1706
silly-hood1836
the world > health and disease > ill health > a disease > disorders of internal organs > disorders of pregnancy or birth > [noun] > chorionepithelioma
deciduoma malignum1895
choriocarcinoma1901
chorio-epithelioma1901
chorion-epithelioma1903
1545 T. Raynald in tr. E. Roesslin Byrth of Mankynde i. sig. I.ivv The bastynge that is betwene the Matrix and Chorion.
1646 Sir T. Browne Pseudodoxia Epidemica iii. vi In regard the cub comes forth involved in the Chorion, a thick and tough membrane. View more context for this quotation
1646 Sir T. Browne Pseudodoxia Epidemica v. xxi. §17. 269 The infant hath three teguments, or membranous filmes which cover it in the wombe, that is, the Corion, Amnios, and Allantois.
1754–64 W. Smellie Treat. Midwifery I. 114 The External coat of the Ovum is the membrane Chorion.
1835–6 Todd's Cycl. Anat. & Physiol. I. 116/1 The chorion of the ova [of the Reptilia] is generally thin or coriaceous, seldom calcified or hard.
1864 F. Hall in H. H. Wilson tr. Vishṅu Puráṅa I. 40 Meru was its amnion, and the other mountains were its chorion.
1903 Jrnl. Obstetr. & Gynæcol. 4 3 The name ‘deciduoma malignum’ is still often used, but the view implied by it is completely abandoned in favour of that of Marchand expressed in the term ‘chorionepithelioma’.
1906 Practitioner Nov. 663 A chorion epithelioma is a tumour which arises, either from the chorion..or from chorionic elements present in teratomata.
1906 Practitioner Nov. 663 Cases which combine carcinomatous and teratomatous, or chorion epitheliomatous characters have been described.
1964 L. C. Martin Clin. Endocrinol. (ed. 4) i. 9 Large amounts of chorionic gonadotrophins are present in the urine of patients with chorionepithelioma.
2. Botany. (See quot. 1816.)
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1816 P. Keith Syst. Physiol. Bot. II. iv. viii. §2. 375 The Chorion, so named by Malpighi, is the soft and pulpy substance of the primitive nucleus of the seed.
3. Anatomy. The cutis vera or true skin; = corium n.
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the world > life > the body > skin > layer of skin > [noun] > specific layers
epiderma1582
outskin1583
cutis1605
cuticle1615
scarf-skin1615
cuticula1621
epidermis1626
flesh side1630
derma1706
scarfy skin1744
rete mucosum1754
hypoderma1826
chorion1828
dermis1830
corium1835
derm1835
epiderm1835
flesh1839
rete1842
grain1851
hypoderm1855
stratum corneum1857
grain-side1858
1828 R. Knox tr. H. Cloquet Syst. Human Anat. 346 They.. terminate in the chorion [Fr. chorion] of the skin.
1845 R. B. Todd & W. Bowman Physiol. Anat. I. 434 The chorion, or cutis, is tough.
ΘΚΠ
the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > coats of
uvea1525
sclerotica?1541
salvatrice1583
chorion1650
sclerotis1670
choroid1683
sclerotic tunic1691
sclerotic1696
goggle?1705
choroid membrane1741
sclerotic coat1741
sclerotic membrane1842
suprachoroid1871
sclera1888
1650 J. Bulwer Anthropometamorphosis 73 The thin membrane Chorion, the first that covereth the Optique sinew.
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2022).
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