/yay"geuhr/ ; for 1 also /jay"geuhr/ , n.
1. any of several rapacious seabirds of the family Stercorariidae that pursue weaker birds to make them drop their prey.
2. a hunter.
3. a member of any of several groups of sharpshooters in the German or Austrian army.
Also, jager, jäger, yager (for defs. 2, 3).
[ 1770-80; Jäger hunter, equiv. to jag ( en ) to hunt + -er -ER 1 ]