trialling

English

Verb

trialling

1. (British spelling) (Canadian spelling, common) present participle and gerund of trial

Noun

trialling (usually uncountable, plural triallings)

1. The process of running a trial; an experiment or pilot.
   • 2020 July 29, David Clough, “AC/DC: the big switch in power supply”, in Rail, page 65:

     Barker's proposal to try out new equipment before mass introduction should also have been heeded, because traction components bought without trialling for the Glasgow and Great Eastern schemes gave trouble.

2. The running of trial races, especially for horses or greyhounds.