Used attributively before another noun to denote the main or principal route/line/etc. (e.g. trunk road, trunk line).
Translations
principalAttributif; pour une voie ou une ligne principale. The cargo was shipped along the trunk railway connecting the two ports.
La cargaison a été acheminée par la ligne ferroviaire principale reliant les deux ports.
Definitions
Main or principal; forming a primary route or line that carries the bulk of traffic, goods, or information (attributive use). The cargo was shipped along the trunk railway connecting the two ports.