Phrase guide

physiologic dead space

noun · 5 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

The volume of the conducting airways of the lung. This definition became inadequate once the alveolar dead space was described.

Definition source: English Wiktionary via Wiktextract

Usage: countable, obsolete, uncountable

Examples

  • 1948. Ward S. Fowler, Lung Function Studies. II. The Respiratory Dead Space., J. Physiology. Vol. 154. p 406. Throughout this paper, the term physiological dead space will be used to refer to the volume of the conducting airway down to the location at which a large change in gas composition occurs.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

That volume of air in the lung which does not partake in gas exchange.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, physiology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

That volume of air in the lung that does not eliminate carbon dioxide, as defined functionally by the Bohr equation.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, physiology, sciences

Examples

  • 2011. John B. West, Respiratory Physiology: The Essentials. Lippincott Williams & Wilkins; Ninth edition. Bohr's method measures the volume of the lung which does not eliminate CO2. Because this is a functional measurement, the volume is called the physiologic dead space.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The sum of the anatomic plus the alveolar dead spaces.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, physiology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

The sum of the parallel and the serial dead spaces.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, physiology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.