n., pl., -ses (-sēz').
See double dagger.
[Medieval Latin, semitone (which was indicated by a double dagger), from Latin, quarter tone, from Greek diesis, a letting through, from diīenai, to send through : dia-, dia- + hīenai, to send.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
