collisionless

C3O1L1L1I1S1I1O1N1L1E1S1S1
/kəˈlɪʒ.ən.ləs/

adjective

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

“a collisionless hash”

OriginProto-Germanic *lausaz ← Proto-Indo-European *lewHs- ← English collision →
UncommonScrabble 15
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Meanings

adjectivecollisionless (not comparable)
  1. not comparableor of the transfer of energynatural sciencesThat does not involve a collision between particles, bodies, plasmas or waves.
  2. not comparablecomputingWithout the possibility of data packets colliding on the network.

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

  3. not comparablecomputingWithout the possibility of items having the same value, which would prevent reliable lookup.

    a collisionless hash

Origin

  1. Englishcollision
  2. Proto-Indo-European*lewh₁-
  3. Proto-Indo-European*lewHs-
  4. Proto-Germanic*leusaną
  5. Proto-Germanic*lausaz
  6. Englishcollisionless

From collision + -less.

Full word history & related roots →
Cite this entry
APA

collisionless. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/collisionless

MLA

“collisionless.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/collisionless. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “collisionless,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/collisionless.

Source: collisionless on Wiktionary, CC BY-SA 4.0.