professionalism

n. state of having professional qualities; state of being a professional (as opposed to an amateur)

This article is about work professions. For religious profession, see Profession (religious). A profession is an occupation, vocation or career where specialized knowledge of a subject, field, or science is applied. It is usually applied to occupations that involve prolonged academic training and a formal qualification. It is axiomatic that "professional activity involves systematic knowledge and proficiency." Professions are usually regulated by professional bodies that may set examinations of competence, act as an licensing authority for practitioners, and enforce adherence to an ethical code of practice.
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Noun
1. the expertness characteristic of a professional person
(hypernym) expertness, expertise

(n.)
The following of a profession, sport, etc., as an occupation; -- opposed to amateurism.
  

The characteristic of being a skilled practitioner; an expert.