Meaning of the word mainline in English

What does mainline mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

mainline

US /ˈmeɪn.laɪn/
UK /ˈmeɪn.laɪn/

Adjective

1.

involving beliefs, methods, etc. that are most common:

Example:
mainline churches

Verb

1.

to inject (= put into the body through a needle) drugs directly into the blood:

Example:
Several of her friends were mainlining heroin.
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