Definition

Noun: A Wormian bone is one of the small, irregular, isolated bones that can sometimes be found within the sutures (the fibrous joints) connecting the bones of the human skull. They are not normally present in every skull and are considered accessory or supernumerary bones.

Usage

The term is used specifically in the fields of anatomy, osteology, and anthropology to describe these small, extra cranial bones. - The anthropological examination of the ancient skull revealed the presence of several Wormian bones along the lambdoid suture. - Wormian bones, also known as sutural bones, are a normal anatomical variant.

Advanced Usage

• Clinical/Medical Context: While usually asymptomatic, the presence of multiple Wormian bones can sometimes be associated with certain genetic or developmental conditions.
  • The radiologist noted numerous Wormian bones on the skull X-ray, which prompted genetic testing for skeletal dysplasias.

Variants and Related Words

• Sutural bone: This is a direct synonym for Wormian bone.
• Intrasutural bone: Another technical term describing a bone located within a suture.
• Accessory bone: A broader term for any extra bone not typically part of the standard skeletal count.

Synonyms

• Sutural bone
• Intra-sutural bone
• Os wormianum (Latin term)

Related Phrases/Idioms

There are no common idioms or phrasal verbs associated with this specific anatomical term.

Noun

1. any of the tiny soft bones found in the sutures between cranial bones