synsacrum en · NOUN
Etymology
From syn- + sacrum.
Meanings
- The bone in birds composed of the sacrum and some lumbar or caudal vertebrae fused together.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| synsacra | Number=Plur | lexicographic | |
| synsacrums | Number=Plur | lexicographic |