tester noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of tester noun from the Oxford Advanced American Dictionary

tester

noun

NAmE//ˈtɛstər//

1a person or thing that tests something testers of new software

Questions about grammar and vocabulary?

Find the answers with Practical English Usage online, your indispensable guide to problems in English.

2a small container of a product, such as perfume, that you can try in a store to see if you like it

See tester in the Oxford Advanced Learner's Dictionary

Check pronunciation: tester