What does "trialled" mean?

(Canadian spelling, common) simple past and past participle of trial

Trialled

Common synonyms include: test, abomination, acid test, adverse circumstances, adversity, affliction.

verb

verb ·Rare ·Advanced level

Verb

1
(Canadian spelling, common) simple past and past participle of trial UK
"Overnight services between Reading and Gatwick Airport are set to be trialled next summer."

"Overnight services between Reading and Gatwick Airport are set to be trialled next summer."