ˈspeshəˌlizəm noun
( -s )
Etymology: special (I) + -ism
1. : specialization in or confinement of interest to a particular field of study, activity, or interest : restriction of concern to one branch or aspect of a wider field (as of knowledge) ; often : excessive confinement to a specialty
humanists decry the tendency to specialism in modern society
2. : a field of specialization : a branch or aspect of something in which specialization exists
the several medical specialisms
geomorphology and other specialisms inside the fold of geography — J.K.Wright