Play word 戸まら 戸まら とまら extensions on the top and bottom of a door that fit into cavities in the frame (as part of a pivot hinge)
Play word 枢 枢 くる pivot hinge (using extensions on the top and bottom of a door that fit into cavities in the frame)
Play word 先天性中枢性肺胞低換気症候群 先天性中枢性肺胞低換気症候群 せんてんせいちゅうすうせいはいほうていかんきしょうこうぐん congenital central hypoventilation syndrome