brittle bones brit·tle bones (brĭt'l)
See osteogenesis imperfecta.
An impulse to do the latter came over her—then to her fancy she could hear the crashing of brittle bones.
I flung the head away under the bed, and rent the brittle bones of the trunk in pieces.
You see, my son, that the human frame has brittle bones—I will harden and yet supple them like steel.