cross–fertilize

cross–fertilize verb
also British cross–fertilise /ˈkrɑːsˈfɚtəˌlaɪz/
cross–fertilizes; cross–fertilized; cross–fertillizing
cross–fertilize
verb
also British cross–fertilise /ˈkrɑːsˈfɚtəˌlaɪz/
cross–fertilizes; cross–fertilized; cross–fertillizing
Britannica Dictionary definition of CROSS–FERTILIZE
[+ object]
1 
: to combine sex cells from (two separate plants) to produce a new plant
2 
: to combine (two different ideas, style, etc.) in a good or creative way

— cross–fertilization

also British cross–fertilisation /ˈkrɑːsˌfɚtələˈzeɪʃən/ Brit /ˈkrɒsˌfəːtəˌlaɪˈzeɪʃən/ noun [noncount]