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The combining form -cephaly is used like a suffix meaning “the state of having a head or heads.” It is often used in medical and scientific terms.

To get more technical, -cephaly is used to create noun forms of adjectives ending in -cephalic or -cephalous. Discover how those forms are used in our �y��vlogs That Use articles for them.

The form -cephaly comes from the Greek ����󲹱�ḗ, meaning “head.”

Corresponding forms of -cephaly, –cephalic, and -cephalous combined to the beginning of words are cephalo- and cephal-, which you can learn more about in our �y��vlogs That Use articles for each form.

Also deriving from ����󲹱�ḗ are the combining forms encephalo- and encephal-, meaning “brain.”

Want to know more? Read our �y��vlogs That Use encephalo- and encephal- articles.

One medical term that features -cephaly is pachycephaly, meaning “abnormal thickness of the skull.”

The first half of the word, pachy–, means “thick.” The second part of the word, -cephaly, means “head.” Putting it all back together, pachycephaly has the literal sense of “thick-headedness.”

What are some words that use the combining form –cephaly?

• acephaly
• autocephaly
• brachycephaly
• megalocephaly
• orthocephaly
• otocephaly

The combining form brachy- means “short.” With this in mind, what is an everyday way of referring to the medical condition of brachycephaly?