orthocephalous

A scientist examines an orthocephalous skull in a museum.

Definition

1. Adjective:
   • Having a moderate or average head shape: In craniometry, "orthocephalous" describes a skull or head that has a vertical index considered normal or intermediate, neither excessively long nor extremely broad. It is a technical term used in physical anthropology and anatomy.

Usage Examples

• Adjective:
  • The ancient population was classified as orthocephalous based on skull measurements. (Their head shape fell within the average range for the vertical index.)
  • An orthocephalous individual typically has a well-proportioned cranial vault. (The skull does not show extreme elongation or flattening.)

Advanced Usage

• "orthocephalous index": a specific measurement used in craniometry to determine the vertical proportions of the skull.
  • Researchers calculated the orthocephalous index to compare different human groups. (They used the ratio of skull height to length to assess head shape.)

Variants and Related Words

• Orthocephaly (noun): the condition of having an orthocephalous skull.

  • Orthocephaly is often contrasted with platycephaly (flat head) and hypsicephaly (high head). (It refers to a normal, moderate head shape.)

• Orthocephalic (adjective): an alternative form of "orthocephalous."

  • The orthocephalic skull shape is common in modern human populations. (It is the same as orthocephalous.)

Synonyms

• Normocephalic: having a normal head shape.
  • The patient was normocephalic, with no signs of cranial deformity. (The head shape was within the typical range.)

Related Idioms

• No common idioms exist for this highly technical term.