одича́ние

nounneuterinanimateuncountable

1.
becoming wild, running wild, lapsing into a wild state, degeneration
Одичание домашних животных без присмотра.
The running wild of domestic animals without supervision.

Examples

Учёные изучали одичание домашних животных в лесу.
The scientists studied the process by which domestic animals went wild in the forest.
После войны заметно было одичание местных нравов.
After the war, the coarsening of local customs was noticeable.
Одичание собаки без хозяина произошло быстро.
The dog quickly went wild without its owner.