
1) Aortal
Found on
https://www.crosswordclues.com/clue/mainline

1) Bryn Mawr locale 2) In an established group 3) Inject 4) Inject into the vein 5) Mother queuing to shoot up 6) Posh area of Phila 7) Principal highway 8) Principal rail route 9) Principal route of a railroad 10) Railroad route 11) Suburban philadelphia area
Found on
https://www.crosswordclues.com/clue/mainline
[aeronautics] A mainline flight is a flight operated by an airline`s main operating unit, rather than by regional alliances, regional code-shares or regional subsidiaries. In the USA, examples of mainline passenger airline flights include those operated by American Airlines, Delta Air Lines, United Airlines, and US Airways but it would not ...
Found on
http://en.wikipedia.org/wiki/Mainline_(aeronautics)

the main fishing line on the fishing reel
Found on
http://www.fish-uk.com/dictionary.htm

A reference to long-standing denominational establishments; mainline churches are those such as the Presbyterians, Episcopalians, and others.
Found on
http://www.victorious.org/cbook/glossary

A reference to long-standing denominational establishments; mainline churches are those such as the Presbyterians, Episcopalians, and others.
Found on
http://www.victorious.org/cbook/glossary

[
v] - inject into the vein
Found on
http://www.webdictionary.co.uk/definition.php?query=mainline

describes the main body of line that you are using that fills the majority of your spool.
Found on
https://www.encyclo.co.uk/local/22505
[Logging] The line attached to the buttrigging used to pull logs to the landing.
Found on
https://www.osha.gov/SLTC/etools/logging/index.html
No exact match found.