Definition of "twin-screw" []

• Nautical Having two propellers, one on either side of the keel, that usually revolve in opposite directions. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The screeeing sound of the twin-screw fish was enough to raise the hairs on your neck."
• "The boat is twin-screw, and the principal dimensions are:"
• "Duneen_, although a twin-screw vessel, was not of more than 5,000 tons burden, having been built as a mail carrier for distant ports, in which speed was regarded as the important element in her construction."