One who makes a career in one of the armed forces.(noun)
Informal Slang A right-to-lifer.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "lifer" in a sentence
"Every Cave lifer is more than aware of the fate that often awaits the women in Cave's songs."
"The lifer is only able to talk to other lifers - and let's face it they don't have to be sold to anymore."
"Similar to how the pro abort crowds get into a frenized tizzy when an pro lifer is invited to some place of prominence in govt. or acedemia. —"