Webster's English Dictionary

Enter the word to look up:

population

pop.u.la.tion \.pa:p-y*-'la--sh*n\ n [LL population-, populatio, fr. L 
   populus] 1: the whole number of people or inhabitants in a country or 
   region  2: the act or process of populating  3a: a body of persons having a 
   quality or characteristic in common  3b1: the organisms inhabiting a 
   particular area or biotope  3b2: a group of interbreeding biotypes that 
   represents the level of organiz ation at which speciation begins 4: a group 
   of individual persons, objects, or items from which samples are  taken for 
   statistical measurement