Standard Lemma guide

collisionless

adj · 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

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1

adj

Meaning 1

That does not involve a collision between particles, bodies, plasmas or waves.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: or of the transfer of energy

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Without the possibility of data packets colliding on the network.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

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

Examples

  • A token ring network is collisionless, but an Ethernet network is not.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Without the possibility of items having the same value, which would prevent reliable lookup.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

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

Examples

  • a collisionless hash

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree English collision Proto-Indo-European *lewh1- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les English -less English collisionless From collision + -less.