main line
Noun
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Noun
main line (plural main lines)
- (rail transport) The principal route or line of a railway.
- (fishing) In longline fishing the central line to which the branch lines with baits are attached.
- (slang) A principal vein into which a drug can be injected.
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.003