(zootomy) A connecting ridge or projection, especially on a bone. / (entomology) A lobe on the forewing of some moths which interlocks with the hindwing in flight.

plural of jugum

(anatomy) The structure connecting the two wings of the sphenoid bone.

(historical) A device to compress the penis, used to prevent masturbation in Victorian times.

(anatomy) An arched elevation on the anterior surface of the petrous portion of the temporal bone over the superior semicircular canal.