ju·gum (jōō'gəm) n.
pl.ju·ga (-gə) or ju·gums A yokelike structure in certain insects that joins the forewings to the hind wings, keeping them together during flight.
[Latin iugum, yoke; see yeug- in Indo-European roots.]
Main Entry: ju·gum Pronunciation: 'jü-g&m Function: noun Inflected Form: pluralju·ga/-g&/orjugums : an anatomical ridge or groove connecting two structures