Of or relating to the yolk of an egg. Also: of or relating to both the ovum and the yolk; specifically designating a duct in certain flatworms along which yolk cells and ova both pass.
ovovitelline/ˌəʊvəʊvɪˈtɛlʌɪn/ /ˌəʊvəʊvʌɪˈtɛlʌɪn/ /ˌəʊvəʊvɪˈtɛliːn/
1940s; earliest use found in American Midland Naturalist. From ovo- + vitelline, probably after French ovovitelline.