Definition of "lieutenant commander" []

• A commissioned rank in the U.S. Navy or Coast Guard that is above lieutenant and below commander. (noun)
• One who holds this rank. (noun)

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.

• "As he was, she was dressed in the standard-issue Starfleet uniform of the year 2400—ribbed blackfabric trousers and jacket, the shoulder of which was blue to designate Jadzia’s science specialty, with her lieutenant commander pips vertically centered just below the jacket’s collar."
• "I was a lieutenant commander in VF-191, flying the CO's F-8E, Feedbag 101."
• "The lieutenant commander put his hands on Uhura’s shoulders."