Shirabe

硬直こうちょく

Common Noun Irregular Intransitive
English jmdict
1
noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb stiffening;rigidity;rigor;stiffness;ossification;petrification
壁のまわりのバレリーナ達は筋肉が硬直しないように脚と足先を伸ばしています。
The ballerinas around the walls are stretching their legs and feet so their muscles will not become stiff.