trial runˌtrial ˈrun noun [countable] 
Examples
This year is something of a trial run for the new service.
ExamplesEXAMPLES FROM OTHER DICTIONARIES
Thesaurus- The airline's new check-in system will be given a trial run this weekend.
- After hearing of the consumer law from friends, Mr Wang decided to stage a trial run.
- Because this was the contraption's trial run, it was to be driven manually by turning the big wheel.
- But after a trial run, what do her passengers think of the ride?
- Cherrie advises against leading edge technology and even with what is regarded as a technological winner he recommends a trial run.
- The web site proved to be a bit bulky and tough to maneuver during a weeknight trial run...
- Thursday dawned crisp and sunny, perfect weather for a trial run, but I still chickened out!
- Use a smooth four-ply yarn and you can attach it to an old test piece for a trial run.
Longman Language Activatora test on something to check it or find out about it► test
an occasion when you test a new method or system to see if it works well: a process that is used for finding out important information about something, for example whether a machine is working properly, whether a substance is safe, or whether someone has an illness: · a ban on nuclear teststest to determine/show/find etc: · Teachers can use the program to create tests to check children's progress.· A blood test can be done to determine who the baby's father is.carry out a test/do a test: · Doctors did several tests to find out what was wrong.test on: · We carry out safety tests on all our products.test for (=to find out if something exists): · There is a simple test for diabetes.eye/blood/skin etc test: · A blood test will show if you are a possible bone marrow donor.hearing/sight etc test: · Nine-month-old babies are given hearing tests by health visitors.
► experiment a scientific test to find out how something is affected when you do something to it: · In one experiment, the men were not allowed to sleep and then were tested on how well they were able to concentrate.· The elderly people were taught meditation in the 12-week experiment.do/carry out/perform an experiment: · They are doing experiments to learn more about the affects of alcohol on the brain.experiment on (=an experiment using something): · The Institute plans to conduct no further experiments on monkeys.
► trial a test in which a new product, such as a drug, a weapon, or a vehicle, is used by a small number of people in order to find out if it is safe and effective: · Results of the drug trial will be available soon.trial of: · Probert is overseeing the trials of the new explosives.clinical trial (=a trial of a drug or treatment that is done carefully by doctors on humans): · Until now, the drug was only available to people taking part in clinical trials.
► testing formal when something such as a process, system, substance etc is being examined, in order to see whether it exists, is safe, or is working properly: · The U.S. conducted atomic weapons testing in Nevada during the 1950s.· The aircraft is still in the early stages of testing and production.drug/genetic/AIDS etc testing: · Athletes will be subject to random drug testing.
► trial run an occasion when you test a new method or system to see if it works well: · The national railroad is doing a few trial runs to test new equipment.
► pilot a test in which a new idea or plan is used in a limited number of places or situations, in order to see if it is worth continuing or doing in a more general way: · The results of the pilot have been encouraging.pilot study/project/program etc: · The government sponsored a pilot project to find out how the education reforms would work in schools.
► piloting a process in which a new system or product is tested using different groups of people in order to see how effective and popular it will be: · Extensive piloting has shown us our study book will be a useful aid to students.
This year is something of a trial run for the new service.