Definition of chorioallantoic in English:



  • Relating to or denoting fused chorionic and allantoic membranes around a fetus.

    ‘Four, 10 to 15 day old embryonated chicken eggs were each inoculated via dropped chorioallantoic membranes with 0.1 mL of sample and incubated at 37 deg C as described by Senne.’
    • ‘These differ from the chorioallantoic placentae of placentals, however, in that they have no villi, which effectively reduces the intimacy of contact between fetus and mother.’
    • ‘Whenever possible, isolation via the propagation of virus on chorioallantoic membranes of chicken embryos should be used as the definitive diagnosis of choice.’
    • ‘High calbindin-D28K expression was detected in samples of corn snake yolk splanchnopleure and chorioallantoic membrane during late embryonic stages when calcium removal from the yolk and the eggshell also was highest.’
    • ‘Small molecular size HA fragments 4-25 disaccharides units (approximately 1,600 to 10,000 Da) produced by the action of testicular hyaluronidase have been shown to induce angiogenesis in chick chorioallantoic membrane.’



/ˌkôrēōˌalənˈtōik/ /ˌkɔrioʊˌælənˈtoʊɪk/