Standard Lemma guide

bitmask

noun · verb · 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

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.

  • UK: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A pattern of bits indicating which bits in a second pattern are to be modified.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To mask (a value) using a bitmask.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From bit + mask.

Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: bittimaski — pattern of bits
  • Finnish: bittipeite — pattern of bits
  • Greek: δυφιακή μάσκα (dyfiakí máska) — pattern of bits