bone age
- noun
- /boʊn eɪdʒ/
- Specialized
:
edad ósea
- Comparing the X-ray results with standard data, the specialist determined that his bone age was significantly delayed.
Examples
-
To understand her growth issues, the pediatrician recommended an X-ray to check her bone age.
-
I was diagnosed with hypothyroidism at age 4 with a bone age of 9 months.
Blog text (31) -
The doctor used an X-ray to assess my son's bone age and compare it to his chronological age.
Surface Forms
Morphology
The meaning is a straightforward composition of 'bone' + 'age' — essentially the age or developmental stage of a person's bones — so a learner who knows both words and basic noun–noun compounding can infer the intended sense. This compositional pattern is common cross-linguistically and does not rely on idiomatic or metaphorical extension, so it should be accessible to a B1 learner.
Etymology
Bone age comes from doctors looking at a child's bones on an X-ray to see how much they have grown and how 'old' the bones look. That's why bone age now means 'the stage of bone growth' used to compare a child's body development with their real age.
