Tri-mode
adj ·Rare ·Advanced level
Definitions
- 1 Of a train or locomotive: Designed to operate on electricity on electrified lines, or diesel-electric power (from a diesel generator) or battery power on non-electrified lines. not-comparable
"Testing of a five-car Hitachi Class 802/0 tri-mode unit will begin in 2022, and the train could be in traffic the following year. It is expected the train will save more than 20% of fuel on Great Western Railway's London Paddington-Penzance route. The plan is for the '802' to use battery power in and out of stations, and through urban areas. Of the 305-mile route, only 53 miles as far as Newbury are electrified (17%)."
Example
More examples"Testing of a five-car Hitachi Class 802/0 tri-mode unit will begin in 2022, and the train could be in traffic the following year. It is expected the train will save more than 20% of fuel on Great Western Railway's London Paddington-Penzance route. The plan is for the '802' to use battery power in and out of stations, and through urban areas. Of the 305-mile route, only 53 miles as far as Newbury are electrified (17%)."
Etymology
From tri- + mode.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.