Subject to decay, spoilage, or destruction.(adjective)
Something, especially foodstuff, subject to decay or spoilage. Often used in the plural.(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 "perishable" in a sentence
"Instead, they will continue to collect what they call perishable evidence -- parts and pieces that will lose their meaning once the plane is moved."
"Travel tickets are what I call perishable goods: If a company doesn't sell seats, then they lose them."
"Prices of private-label perishable foods are rising even faster, up 12% last year versus an 8% jump for national brands."