tri-annual en · ADJ
Etymology
From tri- + annual.
Meanings
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(alt-of, alternative, not-comparable) Alternative form of triannual.
alt of triannual
"I don't think moving to tri-annual timetable changes brings any benefit to the freight sector.
2023 September 6, Anthony Lambert, “Train paths: more space for freight?”, in RAIL, number 991, page 34: