Phrase guide

cranial index

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A measure of the elongation or flatness of a head or skull: the maximum breadth of the skull divided by its maximum length, multiplied by 100.

Definition source: English Wiktionary via Wiktextract

Topics: anthropology, human-sciences, medicine, sciences

Examples

  • The width of the skull is 18 cm and the length 24 cm, so the cranial index is 75.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

ratio (in percent) of the maximum breadth to the maximum length of a skull

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cephalic index, breadth index

Antonyms: none provided

Broader terms: ratio

History

Etymology

No etymology was provided for this word.