| 单词 | choria |
| 释义 | chorion /kōˈri-on or körˈi-on/ (anatomy)noun (pl choˈria)One of the two membranes that surround an embryo and which in mammals develops into the placenta as the embryo develops in the uterus ORIGIN: Gr chorion chorionˈic or choˈrial adjective Of or relating to the chorion choˈroid or choˈrioid adjective Of or resembling a chorion nounThe vascular tunic of the eyeball, between the retina and the sclera (also choˈrioid coat) choroidīˈtis noun (medicine) Inflammation of the choroid choriocarcinōˈma noun A malignant tumour that develops from the placenta in the uterus chorionic gonadotrophin noun A hormone produced in mammals when an embryo begins to form in the uterus, its presence in the urine being an indication of pregnancy choroid plexus noun (medicine) A vascular membrane projecting into the ventricles of the brain and secreting cerebrospinal fluid chorionic villus sampling A method of diagnosing abnormalities in a fetus by removing a tiny sample of chorionic tissue from the edge of the placenta for laboratory analysis |
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