Definition of chorionic in US English:

chorionic

adjective

Embryology
  • See chorion

    • ‘Lesions that were frequently coexistent in HEV-affected placentas included villitis of unknown etiology, chorionic thrombi, villous fibrosis, erythroblastosis, and primary infarcts.’
    • ‘Amniotic fluid, chorionic villi, or fetal serum can be tested for evidence of West Nile virus infection.’
    • ‘These authors found ultrastructural evidence of altered endothelial and smooth muscle cells within chorionic vessels exhibiting HEV-like lesions.’
    • ‘If chorionic villi are absent, ectopic pregnancy is likely.’
    • ‘Triple screening should not replace amniocentesis or chorionic villous sampling in pregnancies at high risk for trisomy 21.’

Pronunciation

chorionic

/ˌkôrēˈänik//ˌkɔriˈɑnɪk/