synsacrum (English, noun)
expansion: synsacrum (plural synsacrums or synsacra)
Senses:
topics: anatomy
biology
medicine
natural-sciences
ornithology
sciences
glosses: The bone in birds composed of the sacrum and some lumbar or caudal vertebrae fused together.
Forms:
form: synsacrums
tags: plural
form: synsacra
tags: plural