indigenous – adj. produced, living, or existing naturally in a particular region or environment

postage stamp – n. a small piece of paper that you buy and then stick to an envelope or package to pay the cost of mailing it

Aboriginal – adj. of or relating to the native people of Australia

board – n. a group of people who manage or direct a company or organization

dialysis – n. the process of removing some of a person's blood, cleaning it, and then returning it to the person's body

disadvantaged – adj. lacking access to the things, such as money and education, that are considered necessary for an equal position in society