from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A principal section of a railroad line.
  • n. Slang A principal and easily accessible vein, usually in the arm or leg, into which a drug can be injected.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The principal route or line of a railway.
  • n. In longline fishing the central line to which the branch lines with baits are attached.
  • n. A principal vein into which a drug can be injected.

from the GNU version of the Collaborative International Dictionary of English

  • n. Ahe principal route of a transportation system, such as a railroad or bus line.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the principal route of a transportation system


Sorry, no etymologies found.


  • I remember to install a progress-capture loop from the anchor to the main line this time, so that if I am successful in raising the boulder even a few inches, I can seize the main line with the Prusik and reset the rest of the system to haul again.

    127 Hours

  • An attack by the battle group recaptured the main line of resistance formerly held by the 560th Heavy Antitank Battalion and it dug in on a line from Pamet to Höfer (two kilometers northeast of Höfer).

    Panzer Aces

  • It was also running through the Commander's mind, at HQ 4 CMBG, that there might soon be a distinct change of emphasis and alignment of the enemy's main line of thrust.

    First Clash

  • McLaws occupied the little settlement of Sandy Hook, nestled under the east edge of Maryland Heights on the main line of retreat northward from Harper's Ferry.


  • Bix's tank was now lying immobilized in front of the Russian main line of resistance.

    Panzer Aces

  • When III Panzer Corps pulled back to a new main line of resistance on 20 July, the 6th Panzer Division, thanks to the tireless efforts of Dr. Bäke, had available thirty-one tanks and three flamethrower tanks.

    Panzer Aces

  • At length, after 4:00 P.M., they reached Port Walthall Junction, a discouraged station on the main line to Richmond from which a branch ran to the lower Appomattox.


  • On the western face of the salient, George Doles's Georgia brigade of Rodes's command held an incomplete work and, 150 to 200 yards in front of it, a main line in the form of a lesser salient that looked out on 200 yards of open ground.


  • Within our main line of resistance there were over one hundred knocked-out Russian tanks [fourteen of those had been destroyed by von Ribbentrop and his crew].

    Panzer Aces

  • Nine miles to the southeast was Tunstall's Station on the York River Railroad, McClellan's main line of supply.



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