Definition of "expendable" []

• Subject to use or consumption: an expendable source. (adjective)
• Not worth salvaging or reusing: expendable rocket boosters. (adjective)
• Not strictly necessary; dispensable: an expendable budget item; expendable personnel. (adjective)
• Open to sacrifice in the interests of gaining an objective, especially a military one: expendable civilian targets. (adjective)
• Something expendable. (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.

• ""So far, sites have focused their attention on a younger demographic, which is finite, fickle and limited in expendable income.""
• "Some may say I have a vested interest in the discussion; because if a child can be defined as expendable, what then of a person in their declining years?"
• "The problem with present desire for NASA to base its entire Space Program on expendable launch vehicles, is the key word expendable!"