|abˌmīˈgrāshən noun
( -s )
Etymology: ab- (I) + migration
: northward summer migration of birds that have not made a corresponding southward journey in the previous autumn
|abˌmīˈgrāshən noun
( -s )
Etymology: ab- (I) + migration
: northward summer migration of birds that have not made a corresponding southward journey in the previous autumn
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012