avianize
[ ey-vee-uh-nahyz ]
/ ˈeɪ vi əˌnaɪz /
verb (used with object), a·vi·an·ized, a·vi·an·iz·ing. Microbiology.
to diminish the infectivity of (a virus) by repeated culturing in chick embryos.
Also
especially British,
a·vi·an·ise.