1.someone who helps to open up a new line of research or technology or art
2.one the first colonists or settler in a new territory;
they went west as pioneers with only the possessions they could carry with them
1.open up an area or prepare a way;
She pioneered a graduate program for women students
2.take the lead or initiative in; participate in the development of;
This South African surgeon pioneered heart transplants
3.open up and explore a new area;
pioneer space