A group of suburbs of southeast Pennsylvania. The fashionable area was named after the chief railroad line traveling west from Philadelphia. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
main line
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Tweet n. 1. A principal section of a railroad line. 2. Slang A principal and easily accessible vein, usually in the arm or leg, into which a drug can be injected. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.