jugum

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ju·gum

 (jo͞o′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.]

jugum

(ˈdʒuːɡəm)
n
1. (Zoology) a small process at the base of each forewing in certain insects by which the forewings are united to the hindwings during flight
2. (Botany) botany a pair of opposite leaflets
[C19: from Latin, literally: yoke]

ju•gum

(ˈdʒu gəm)

n.
the posterior basal area or lobe in the forewing of certain insects, sometimes serving to couple the forewings and hind wings in flight.
[1855–60; < New Latin, Latin: yoke]