Rickets
RICK'ETS, noun [In technical language, rachitis, Gr. from back or spine, Eng. rack, applied to the neck piece of meat. See Rack and Ridge.]
A disease which affects children, and in which the joints become knotted, and the legs and spine grow crooked. As the child advances in life, the head is enlarged, the thorax is compressed on the sides, and the sternum rises.