Assertion: trapezium | /r/CapableOf | become visible
Facets:
value: in an x-ray
type: LOCATION
Source sentences:
text: Like all the other carpal bones, the trapezium is cartilaginous at birth, beginning to ossify (becoming visible in an x-ray) when a child is 4 to 6 years old, around the same time as the scaphoid and trapezoid  .