| Formes composées |
WordReference English-French Dictionary © 2026:
aftereffect,
also UK: after-effect n | often plural (consequence) | effet secondaire nm |
| | | répercussion, conséquence nf |
| butterfly effect | (cumulative effect) | effet papillon nm |
| cause and effect n | (principle of causality) | lien de cause à effet nm |
| | | rapport de cause à effet nm |
| | The law of cause and effect (Karma) is an important principle in Buddhism. |
| | La loi du lien de cause à effet (Karma) est un principe important du bouddhisme. |
| chilling effect n | (law: discouragement, deterrent) | effet dissuasif nm |
| chilling effect n | figurative (frightening nature) (figuré) | refroidir⇒ vtr |
| | | effet paralysant nm |
| | I'll never forget the chilling effect of the Prime Minister's words as he announced the outbreak of war. |
| | Je n'oublierai jamais comment l'annonce de la guerre par le Premier ministre a refroidi l'assemblée. |
come into force,
come into effect v expr | (become applicable, active) (loi) | entrer en vigueur, entrer en application loc v |
| | The new law does not come into force until February of next year. |
| | La nouvelle loi ne va pas entrer en vigueur avant février de l'année prochaine. |
| desired effect n | (intended result or impact) | effet escompté nm |
| | Wearing a scary mask on Halloween got the desired effect: everyone was scared. |
| deterrent effect n | (that deters) | effet dissuasif nm |
| | Despite what its supporters say, studies show that the deterrent effect of the death sentence is negligible. |
| | Malgré ce que peuvent dire ceux y étant favorables, des études montrent que l'effet dissuasif de la peine de mort est négligeable. |
| dihedral effect n | (rolling of an aircraft) | effet dièdre nm |
| domino effect n | (chain of events) | effet domino nm |
| | The Tunisia Revolution triggered a domino effect in the region. |
| | La révolution tunisienne a déclenché un effet domino dans la région. |
| Doppler effect n | (physics: change in frequency) (Physique) | effet Doppler nm |
| effect size n | (statistics: ratio) (Statistiques) | ampleur de l'effet, valeur de l'effet nf |
| for effect expr | (to make an extra impression) | pour créer un effet, pour faire un effet loc adv |
| | | to pause for effect : marquer une pause théâtrale loc adv |
| greenhouse effect n | (environment: global warming) | effet de serre nm |
| | Temperatures are gradually rising globally due to the greenhouse effect. |
| | Les températures augmentent peu à peu à cause de l'effet de serre. |
| Groundhog Day effect n | (repetitious routine) | train-train quotidien nm |
| | J'en ai assez du train-train quotidien ! Partons en vacances ! |
| halo effect n | (admire all of [sb]'s actions) (technique : effet positif) | effet de halo nm |
| halo effect n | (positive prejudice) (technique : biais positif) | effet de halo nm |
| | The halo effect meant that many people still voted for the politician despite his underhanded actions. |
| have a strong effect v expr | (make a big impact) | avoir un effet important loc v |
| | | avoir beaucoup d'effet sur loc v |
| | Bright colors have a strong effect on mood. |
| | Les couleurs vives ont un effet important sur l'humeur. |
| | Les couleurs vives ont beaucoup d'effet sur l'humeur. |
| have an effect v expr | (make an impact) | avoir de l'effet loc v |
| | Advertising takes a lot of money to have an effect. |
| | Il faut beaucoup d'argent pour que la publicité ait de l'effet. |
| | | faire effet vi |
| | Il faut beaucoup d'argent pour la publicité fasse effet. |
| hypnotic effect n | (power to put into a trance) | effet hypnotique nm |
| | Her perfume had a hypnotic effect on those around her. |
| hypnotic effect n | figurative (power to mesmerize or entrance) | effet hypnotique nm |
| ill effect n | (undesirable outcome) | effet nocif nm |
| in effect adv | (to all intents and purposes) | en réalité, en fait loc adv |
| | | dans les faits loc adv |
| | The Internet is, in effect, the most detailed archive of our times. |
| | Internet est, en réalité (or: en vérité), l'archive la plus détaillée de notre temps. |
| be in effect v expr | (be in operation) (loi) | en vigueur loc v |
| | (contrat) | être effectif, être effective vi + adj |
| | (plan, machine) | être opérationnel, être opérationnelle vi + adj |
| | The new law has been in effect for a year now. |
| | La nouvelle loi est en vigueur depuis un an. |
| knock-on effect n | UK (indirect consequence) | répercussion, conséquence nf |
| | | effet nm |
| | Inflation can be a knock-on effect of increased government spending. |
| | L'inflation peut être une répercussion (or: conséquence) de l'augmentation des dépenses gouvernementales. |
| long-term effect n | often plural (impact extending into the future) | effet à long terme nm |
net result,
net effect n | (outcome) | résultat final nm |
| | The net result of all the conflict was poverty and more instability. |
| | Le résultat final de tout le conflit fut la pauvreté et plus d'instabilité. |
photoelectric effect,
photoemission n | (physics) (physique) | effet photoélectrique nm |
| placebo effect n | (of medication) (Médecine) | effet placebo nm |
| | He really believed the pills he was taking were working but it was just a placebo effect. |
| | Il croyait vraiment en l'efficacité de ses pilules, mais ce n'était que l'effet placebo. |
| put [sth] into effect v expr | (law, rule: enforce) (une loi) | mettre en œuvre loc v |
| | (une loi) | appliquer⇒ vtr |
| | (changement de sujet) | entrer en vigueur loc v |
| | (changement de sujet) | prendre effet loc v |
| | The government should move immediately to put the law into effect. |
| ripple effect n | (spread or influence of [sth]) | effet d'entraînement nm |
| | | répercussions nfpl |
| | When one person applauds and everyone else joins in, that's the ripple effect at work. |
| side effect n | (secondary effect: of drug) | effet secondaire nm |
| | Side effects of this drug may include nausea and a skin rash. |
| | Les effets secondaires de ce médicament comprennent la nausée et les éruptions cutanées. |
| side effect n | ([sth] incidental) | effet secondaire nm |
| | Losing weight is a welcome side effect of fasting in Lent. |
| | La perte de poids est un effet secondaire positif du jeûne du Carême. |
| skin effect | (electronics) (phénomène électromégnétique) | effet pelliculaire nm |
| sound effect n | often plural (noises reproduced artificially) | effet sonore nm |
| | A good action movie needs excellent sound effects. |
| | Un bon film d'action a besoin de très bons effets sonores. |
| | | bruitage nm |
| special effect n | usually plural (cinema, TV: visual created artificially) (Cinéma, surtout au pluriel) | effet spécial nm |
| | The film has lots of stunning special effects but no story. |
| | Le film avait de super effets spéciaux mais pas d'histoire. |
| strobe effect n | (stroboscopic optical illusion) | effet stroboscopique nm |
| take effect v expr | (work, have an influence) (médicament) | faire effet loc v |
| | Within half an hour the tablets took effect and the pain disappeared. |
| | The poison quickly began to take effect. |
| take effect v expr | (become valid) (loi) | prendre effet loc v |
| | The new law takes effect from midnight on Sunday. |
thermoelectric effect,
Seebeck effect n | (physics) | effet thermoélectrique nm |
| to this effect adv | (for this purpose) | à cet effet loc adv |
| | | à cette fin loc adv |
| to this effect adv | (like this) | à cet effet, dans ce sens loc adv |
| total effect n | (overall impact) | effet général nm |
| | Individually the performances were nothing special, but taken together the total effect was stunning. |
| | | effet d'ensemble nm |
| | | effet global nm |
| with immediate effect adv | (from this very moment) | avec effet immédiat loc adv |
| | | immédiatement adv |