Phrase guide

dead space

noun · 3 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.

No pronunciation record was provided for this word.

1

noun

Meaning 1

The portion of the respiratory tract that is ventilated but not perfused by pulmonary circulation.

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

2

noun

Meaning 2

Picture information that is either masked off or cropped out of viewing area, whether at the top or bottom, or to the sides.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: broadcasting, film, media, television

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An unusable space.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: architecture

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.