Standard Lemma guide

pneumoencephalography

noun · 1 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • rhymes with -ɒɡɹəfi

1

noun

Meaning 1

A former medical procedure in which most of the cerebrospinal fluid was drained from around the brain and replaced with air, oxygen, or helium to allow the structure of the brain to show up more clearly on an X-ray image.

Definition source: English Wiktionary via Wiktextract

Usage: countable, obsolete, uncountable

Topics: medicine, neurology, neuroscience, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From pneumo- + encephalo- + -graphy.