collision

the act of colliding; a crash: Traffic was tied up due to a collision on the freeway.
Not to be confused with:collusion – a secret agreement to defraud or deceive: Proof of collusion led to their arrest.

col·li·sion

C0483100 (kə-lĭzh′ən)n.1. An act of colliding; a crash.2. A condition of opposition or conflict between two or more people or things: the collision between management and labor.3. Physics A brief dynamic event consisting of the close approach of two or more particles, such as atoms, resulting in an abrupt change of momentum or exchange of energy.

[Middle English, from Late Latin collīsiō, collīsiōn-, from Latin collīsus, past participle of collīdere, to collide; see collide.]

col·li′sion·al adj.col·li′sion·al·ly adv.Synonyms: collision, crash¹, impact
These nouns denote violent forcible contact between two or more things: the midair collision of two planes; a crash involving two cars; a crater produced by the comet's impact.

collision

(kəˈlɪʒən) n1. a violent impact of moving objects; crash2. the conflict of opposed ideas, wishes, attitudes, etc: a collision of interests. 3. (General Physics) physics an event in which two or more bodies or particles come together with a resulting change of direction and, normally, energy[C15: from Late Latin collīsiō from Latin collīdere to collide]

col•li•sion

(kəˈlɪʒ ən)

n. 1. the act of colliding; a crash. 2. a conflict; clash. 3. Physics. the meeting of particles or of bodies in which each exerts a force upon the other. [1400–50; late Middle English < Late Latin collīsiō= Latin collīd(ere) to collide + -tiō -tion] col•li′sion•al, adj.

Thesaurus

Noun	1.	collision - (physics) a brief event in which two or more bodies come together; "the collision of the particles resulted in an exchange of energy and a change of direction"hitnatural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"impinging, striking, contact - the physical coming together of two or more things; "contact with the pier scraped paint from the hull"
	2.	collision - an accident resulting from violent impact of a moving object; "three passengers were killed in the collision"; "the collision of the two ships resulted in a serious oil spill"accident - an unfortunate mishap; especially one causing damage or injuryfender-bender - a collision between motor vehicles that produces minor damagepileup - multiple collisions of vehiclessmash-up, smash - a serious collision (especially of motor vehicles)
	3.	collision - a conflict of opposed ideas or attitudes or goals; "a collision of interests"difference of opinion, dispute, difference, conflict - a disagreement or argument about something important; "he had a dispute with his wife"; "there were irreconcilable differences"; "the familiar conflict between Republicans and Democrats"

collision

noun1. crash, impact, accident, smash, bump, pile-up (informal), prang (informal) Their van was involved in a collision with a car.2. conflict, opposition, clash, clashing, encounter, disagreement, incompatibility a collision between two strong personalities

collision

nounViolent forcible contact between two or more things:bump, concussion, crash, impact, jar, jolt, percussion, shock, smash.

Translations

碰撞

collide

(kəˈlaid) verb to strike together (usually accidentally) with great force. The cars collided in the fog; The van collided with a lorry.猛撞collision (kəˈliʒən) noun a crash; a violent striking together (of eg two vehicles). Ten people were injured in the collision between the bus and the car.碰撞

collision

→ 碰撞zhCN

I'd like to arrange a collision damage waiver → 我想购买撞车损坏保险

collision

Physics an event in which two or more bodies or particles come together with a resulting change of direction and, normally, energy

Collision (physics)

Any interaction between particles, aggregates of particles, or rigid bodies in which they come near enough to exert a mutual influence, generally with exchange of energy. The term collision, as used in physics, does not necessarily imply actual contact.

In classical mechanics, collision problems are concerned with the relation of the magnitudes and directions of the velocities of colliding bodies after collision to the velocity vectors of the bodies before collision. When the only forces on the colliding bodies are those exerted by the bodies themselves, the principle of conservation of momentum states that the total momentum of the system is unchanged in the collision process. This result is particularly useful when the forces between the colliding bodies act only during the instant of collision. The velocities can then change only during the collision process, which takes place in a short time interval. Under these conditions the forces can be treated as impulsive forces, the effects of which can be expressed in terms of an experimental parameter known as the coefficient of restitution. See Conservation of momentum, Impact

The study of collisions of molecules, atoms, and nuclear particles is an important field of physics. Here the object is usually to obtain information about the forces acting between the particles. The velocities of the particles are measured before and after collision. Although quantum mechanics instead of classical mechanics should be used to describe the motion of the particles, many of the conclusions of classical collision theory are valid. See Scattering experiments (atoms and molecules), Scattering experiments (nuclei)

Collisions can be classed as elastic and inelastic. In an elastic collision, mechanical energy is conserved; that is, the total kinetic energy of the system of particles after collision equals the total kinetic energy before collision. For inelastic collisions, however, the total kinetic energy after collision is different from the initial total kinetic energy.

In classical mechanics the total mechanical energy after an inelastic collision is ordinarily less than the initial total mechanical energy, and the mechanical energy which is lost is converted into heat. However, an inelastic collision in which the total energy after collision is greater than the initial total energy sometimes can occur in classical mechanics. For example, a collision can cause an explosion which converts chemical energy into mechanical energy. In molecular, atomic, and nuclear systems, which are governed by quantum mechanics, the energy levels of the particles can be changed during collisions. Thus these inelastic collisions can involve either a gain or a loss in mechanical energy.

collision

[kə′lizh·ən] (physics) An interaction resulting from the close approach of two or more bodies, particles, or systems of particles, and confined to a relatively short time interval during which the motion of at least one of the particles or systems changes abruptly.

collision

(networking)When two hosts transmit on a network atonce causing their packets to corrupt each other.

See collision detection.

collision

(programming)hash collision.

collision

collision

col·li·sion

collision

col•li•sion

collision

collision

collide

collision

collision

on a collision course

be on a collision course

on a collision course

be on a colˈlision course (with somebody/something)

collision

collision

Collision (physics)

collision

collision

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collision

collision

Collision

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Synonyms for collision

noun crash

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noun conflict

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Synonyms for collision

noun violent forcible contact between two or more things

Synonyms

Synonyms for collision

noun (physics) a brief event in which two or more bodies come together

Synonyms

Related Words

noun an accident resulting from violent impact of a moving object

Related Words

noun a conflict of opposed ideas or attitudes or goals

Related Words