noun · 4 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.
General-American:/kəˈlaɪdɚ/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:K AH0 L AY1 D ER0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Any of several forms of particle accelerator in which two opposing beams of particles collide.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A node in a causal graph that has at least two incoming edges.
Definition source: English Wiktionary via Wiktextract
Topics: graph-theory, mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A model of the shape of an object for purposes of collision detection.
Definition source: English Wiktionary via Wiktextract
Topics: video-games
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
an accelerator in which two beams of particles are forced to collide head on
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: accelerator, particle accelerator, atom smasher
Narrower terms: electron accelerator, proton accelerator, superconducting supercollider
History
Etymology
Etymology tree English collide Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English collider From collide + -er.
Across languages
Translations
12 source translations are retained for this English entry.
Basque:
talkagailu
— particle accelerator
Catalan:
col·lisonador
— particle accelerator
Chinese Mandarin:
對撞機 /对撞机
(duìzhuàngjī)
— particle accelerator