rickets

n [sing or pl v] children's disease caused by a lack of vitamin D, resulting in softening and deformity of the bones and enlargement of the liver and spleen 佝偻病.

rhythm method, rhythmic, rhythmically, RI, rib, rib-cage, rib-tickling, ribald, ribaldry, ribbon, ribbon development, riboflavin, rice, rice-paper, rich, riches, richly, richness, Richter scale, rick, rickety, rickshaw, ricochet, rid, riddance, ridden, riddle, ride, ride down, ride off, ride on, ride over, rider, ridge, ridge-pole, ridge-tile, ridgeway, ridicule, ridiculous, ridiculously,