spe‧cial‧is‧m /ˈspeʃəlɪzəm/ noun British English
[Word Family: noun: special, specialist, SPECIALITY/SPECIALTY, specialization, specialism; adjective: special, specialized; verb: specialize; adverb: specially]

1. [countable] a particular activity or subject that you know a lot about Synonym : specialization American English
specialism in
graduates with a specialism in Tourism and Leisure

2. [uncountable] the practice of limiting your interests or activities to particular subjects Synonym : specialization American English

[TahlilGaran] Dictionary of Contemporary English ▲