over·pop·u·la·tion 
/ˌoʊvɚˌpɑ:pjəˈleɪʃən/ noun
/ˌoʊvɚˌpɑ:pjəˈleɪʃən/ noun [noncount] : a situation in which too many people or animals live in a certain area
▪ He is studying the problem of deer overpopulation. ▪ world overpopulation
▪ He is studying the problem of deer overpopulation. ▪ world overpopulation
— over·pop·u·lat·ed /ˌoʊvɚˈpɑ:pjəˌleɪtəd/ adjective
▪ the shortage of housing in overpopulated cities
/ˌoʊvɚˈpɑ:pjəˌleɪtəd/ adjective ▪ the shortage of housing in overpopulated cities
