Dictionary
ex•plor•er
Pronunciation: (ik-splôr'ur, -splōr'-), [key]—
n.
1. a person or thing that explores.
2. a person who investigates unknown regions:
the great explorers of the Renaissance.
3. any instrument used in exploring or sounding a wound, a cavity in a tooth, or the like.
4. (
cap.) Also called
Explor'er Scout". a person between the ages 14 and 20 who is an active participant in the exploring program sponsored by the Boy Scouts of America.
5. (
cap.)
Aerospace.one of a long series of U.S. scientific satellites:
Explorer 1 (1958) was the first U.S. artificial satellite.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.