Standard Lemma guide

petromastoid

adj · 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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  • rhymes with -æstɔɪd

1

adj

Meaning 1

Of or relating to the petrous and mastoid parts of the temporal bone

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: anatomy, medicine, sciences

Examples

  • petrmastoid bone
  • petrmastoid canal
  • petrmastoid portion of the bone

Meaning relationships

Synonyms: periotic

Antonyms: none provided

2

noun

Meaning 2

The portion of the temporal bone that includes the petrous and mastoid parts.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From petro- + mastoid.