Ïèîíåð (îò ôðàíö. pionnier — ïåðâîïðîõîäåö, çà÷èíàòåëü), çà÷èíàòåëü ÷åãî-ëèáî, ÷åëîâåê, ïðîíèêøèé â íîâóþ, íåèññëåäîâàííóþ îáëàñòü, ïðîëîæèâøèé íîâûå ïóòè â íàóêå, òåõíèêå, èñêóññòâå.
Îãëàâëåíèå ÁÑÝ