Skeletal (adjective)

1. Relating to or consisting of bones.
2. Having a thin or bony structure; resembling a skeleton.

Origin:

Mid 17th century: from modern latin skeletalis, from latin os, oss- "bone".

Examples:

1. The skeletal system is made up of bones.
2. The fish had a skeletal structure.
3. The skeletal muscles are responsible for movement.
4. The tree had a skeletal appearance in the winter.
5. The skeletal remains of the dinosaur were found in the desert.