ulna
Ulna (noun) means the long bone of the forearm running from the elbow to the wrist, on the side opposite the thumb. Example: “The X-ray revealed a hairline fracture in the ulna.”
How to use ulna
Learner’s notesIn plain EnglishOne of the two forearm bones — the one on the little-finger side.
Easy to mix up with the radius, the other forearm bone, which sits on the thumb side.
Word forms
- Plural
- ulnae, ulnas
Fill the gap
Can you complete this real example?
The X-ray revealed a hairline fracture in the _____.
Etymology
From Latin "ulna", meaning "elbow" or "forearm".