Classes you need to take to become a dental hygienist. An associateâs degree in dental hygiene, which takes two years, is required to start practice. High school students should focus on core courses, including biology, chemistry, and math.
colonisation, settlement. 1  establishment, constitution, formation, organisation, organization - the act of forming or establishing something; the constitution of a PTA group last year; it was the establishment of his reputation; he still remembers the organization of the club.
1. colonize-settle as a colony; of countries in the developing world; Europeans colonized Africa in the 17th century. colonise. annex-take (territory) as if by conquest; Hitler annexed Lithuania. decolonise, decolonize-grant independence to (a former colony); West Africa was decolonized in the early 1960's.olonise. locate, settle-take up residence and become established; The immigrants settled in the Midwest. verb settle, populate, put down roots in, people, pioneer, open up The first British attempt to colonize Ireland was in the twelfth century.