n.
1.a painful and debilitating infestation contracted by drinking stagnant water contaminated with Guinea worm larvae that can mature inside a human's abdomen until the worm emerges through a painful blister in the person's skin
2.parasitic roundworm of India and Africa that lives in the abdomen or beneath the skin of humans and other vertebrates
Idiom of the Day
keep a close rein on (someone or something)
to strictly watch and control someone or something
The mother was keeping a close rein on her child at the shopping center.