pi·o·neer
(pī′ə-nîr′)n.1. One who ventures into unknown or unclaimed territory to settle.
2. One who opens up new areas of thought, research, or development: a pioneer in aviation.
3. A soldier who performs construction and demolition work in the field to facilitate troop movements.
4. A species that is typically among the first to become established in a bare, open, or disturbed area.
adj.1. Of, relating to, or characteristic of early settlers: the pioneer spirit.
2. Leading the way; trailblazing: a pioneer treatment for cancer.
v. pi·o·neered, pi·o·neer·ing, pi·o·neers
v.tr.1. a. To venture into (an area) or prepare (a way): rockets that pioneered outer space.
b. To settle (a region).
2. To initiate or participate in the development of: surgeons who pioneered organ transplants.
v.intr. To act as a pioneer: pioneered in development of the laser.
[French
pionnier, from Old French
peonier,
foot soldier, from
peon, from Medieval Latin
pedō, pedōn-, from Late Latin,
one who has broad feet, from Latin
pēs, ped-,
foot; see
ped- in
Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
pioneer
(ˌpaɪəˈnɪə) n1. a. a colonist, explorer, or settler of a new land, region, etc
b. (as modifier): a pioneer wagon.
2. an innovator or developer of something new
3. (Military) military a member of an infantry group that digs entrenchments, makes roads, etc
4. (Environmental Science) ecology the first species of plant or animal to colonize an area of bare ground
vb5. to be a pioneer (in or of)
6. (tr) to initiate, prepare, or open up: to pioneer a medical programme.
[C16: from Old French paonier infantryman, from paon pawn2; see also peon1]
Pioneer
(ˌpaɪəˈnɪə) n1. a total abstainer from alcoholic drink, esp a member of the Pioneer Total Abstinence Association, a society devoted to abstention
2. (Astronautics) any of a series of US spacecraft that studied the solar system, esp Pioneer 10, which made the first flyby of Jupiter (1973), and Pioneer 11, which made the first flyby of Saturn (1979)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pi•o•neer
(ˌpaɪ əˈnɪər)
n. 1. a person who is among those who first enter or settle a region, thus opening it for occupation and development by others.
2. one who is first or among the earliest in any field of inquiry, enterprise, or progress.
3. one of a group of foot soldiers detailed to make roads, dig entrenchments, etc., in advance of the main body.
4. an organism that successfully establishes itself in a barren area, thus starting an ecological cycle of life.
v.i. 5. to act as a pioneer.
v.t. 6. to be the first to open or prepare (a way, settlement, etc.).
7. to take part in the beginnings of; initiate.
8. to lead the way for (a group); guide.
adj. 9. being the earliest or original.
10. of, pertaining to, or characteristic of pioneers.
11. being a pioneer.
[1515–25; < Middle French
pionier, Old French
peonier foot soldier. See
peon2,
-eer]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.