Definition of trunk line in English:

trunk line

Syllabification: trunk line

noun

A main line of a railroad, telephone system, or other network.
More example sentences
  • It was the junction of the main trunk line to New Plymouth, to Auckland and Wellington.
  • Once we left the trunk line and entered an unpaved road, there were hardly any vehicles.
  • This was the key trunk line between Philadelphia and Pittsburgh, which also linked those cities to larger rural markets.

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Pronunciation: ˈsiːtəʊs
adjective
bearing bristles or setae; bristly