Definitions for mainlineˈmeɪnˌlaɪn, -ˈlaɪn

This page provides all possible meanings and translations of the word mainline

Random House Webster's College Dictionary

main′ line′(n.)

  1. a principal highway or railway line.

    Category: Railroads

  2. Slang. an accessible vein that can be used to inject a narcotic.

    Category: Status (usage)

Origin of main line:

1835–45

main•lineˈmeɪnˌlaɪn, -ˈlaɪn(v.; adj.)-lined, -lin•ing

  1. (v.i.)Slang.to inject a narcotic directly into a vein.

    Category: Status (usage)

  2. (v.t.)Slang. to inject (a narcotic) directly into a vein.

    Category: Common Vocabulary, Status (usage)

  3. (adj.)having a principal, established, or widely accepted position.

    Category: Common Vocabulary

Origin of mainline:

1935–40, Amer.

main′lin`er(n.)

Princeton's WordNet

  1. mainline(verb)

    inject into the vein

    "She is mainlining heroin"

Wiktionary

  1. mainline(Verb)

    To inject (a drug) directly into a vein.

  2. mainline(Adjective)

    normal, principal or standard.

  3. mainline(Adjective)

    Of or pertaining to the principal route or line of a railway

  4. mainline(Adjective)

    Of or pertaining to a surface railway as distinct from an underground, elevated or light rail one.

  5. Origin: * main + line

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