Sociology

Webster's Dictionary

(n.) That branch of philosophy which treats of the constitution, phenomena, and development of human society; social science.

The Nuttall Encyclopedia

The science which treats of the nature and the developments of society and of social institutions; a science to which Herbert Spencer, in succession to Comte, has contributed more than any other scientist, deducing, as he does, a series of generalisations by comparison of individual organisms with social.