Definition of Metrolink in US English:

Metrolink

noun

US
  • A transport system linking a city centre with its suburbs or with surrounding towns. [A trademark in the United States.]

Origin

1980s; earliest use found in Business Week. From metro- + link.

Pronunciation

Metrolink

/ˈmɛtrə(ʊ)ˌlɪŋk/