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1 flicker frequency
(light) fréquence de papillotement, taux de papillotementEnglish-French dictionary of labour protection > flicker frequency
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2 filter
filter ['fɪltə(r)]1 noun(c) (on cigarette) filtre m∎ frequency filter filtre m de fréquences(coffee, oil, water, light etc) filtrer; (air) épurer(a) (coffee, oil, water, light, air etc) filtrer∎ the cars filtered to the left les voitures ont suivi la voie de dégagement vers la gauche►► Building industry filter bed couche f de filtration;filter coffee café m filtre;Cars filter element cartouche f filtrante;filter paper papier m filtre;filtrer;∎ the information finally filtered down to them les informations ont fini par filtrer jusqu'à eux(light, sound, information, news) filtrer; (people) entrer petit à petit(sediment, impurities) éliminer par filtrage ou filtration; figurative (in selection procedure etc) éliminer(people) sortir petit à petit; (news, information) filtrer;∎ information is beginning to filter out that… des informations commencent à filtrer selon lesquelles…∎ the light filtered through the branches la lumière filtrait à travers les branches(pass slowly) passer lentement;∎ the news soon filtered through les nouvelles n'ont pas tardé à filtrer -
3 natural
natural ['nætʃərəl](a) (created by or existing in nature → scenery, environment, light, resources, process) naturel;∎ a natural harbour un port naturel;∎ in a natural state à l'état naturel;∎ the natural world la nature(b) (not artificial → wood, finish) naturel;∎ she's a natural redhead c'est une vraie rousse(c) (normal → explanation, desire, wish) naturel, normal;∎ it's only natural for her to be worried or that she should be worried il est tout à fait normal ou il est tout naturel qu'elle se fasse du souci;∎ I'm sure there's a perfectly natural explanation for it je suis sûr qu'on peut l'expliquer de façon tout à fait naturelle;∎ death from natural causes mort f naturelle;∎ in the natural course of events dans le cours normal des choses;∎ one's or the natural reaction is to… la réaction instinctive est de…;∎ as is (only) natural comme de juste(d) (unaffected → person, manner) naturel, simple(e) (innate → talent) inné, naturel;∎ she's a natural organizer c'est une organisatrice-née, elle a un sens inné de l'organisation(f) (free of additives) naturel(h) (real → parents) naturel∎ G natural sol bécarre(j) Mathematics naturel2 adverb∎ familiar try to act natural! soyez naturel!□3 noun∎ she's a natural elle a ça dans le sang;∎ he's a natural for the job il a le profil de l'emploi□ ;∎ she's a natural for the part elle est faite pour ce rôle□►► natural break (in film, text) coupure f qui va de soi;∎ they reached a natural break in the meeting ils arrivèrent à une étape de la réunion où il était naturel de faire une pause;natural childbirth accouchement m naturel;natural disaster catastrophe f naturelle;natural economy économie f non monétaire;natural family planning = contraception par des moyens naturels;Physics & Electricity natural frequency fréquence f propre;natural gas gaz m naturel;natural historian naturaliste mf;natural history histoire f naturelle;natural immunity immunité f naturelle;natural justice droits mpl naturels;natural language langage m naturel, langue f naturelle;natural language processing traitement m (automatique) du langage naturel;natural law loi f naturelle;∎ for the rest of his/her natural life (sentenced) à perpétuité;Mathematics natural logarithm logarithme m naturel ou népérien;natural medicine médecine f douce ou naturelle, physiothérapie f;natural number nombre m naturel;Law natural person personne f physique ou naturelle;old-fashioned Physics natural philosophy physique f;natural resources ressources fpl naturelles;natural science (UNCOUNT) sciences fpl naturelles;∎ botany is a natural science la botanique fait partie des sciences naturelles;natural selection sélection f naturelle;the Natural State = surnom donné à l'Arkansas;natural theology théologie f naturelle;natural yoghurt yaourt m nature -
4 signal
signal ['sɪgnəl] ( British pt & pp signalled, cont signalling, American pt & pp signaled, cont signaling)1 noun(a) (indication) signal m;∎ to give sb the signal to do sth donner à qn le signal de faire qch;∎ he'll give the signal to attack il donnera le signal de l'attaque;∎ she gave the signal for us to leave elle nous a donné le signal de départ;∎ you're sending all the wrong signals if you want her to realize you're attracted to her si tu veux qu'elle comprenne que tu es attiré par elle, il faut que ton attitude le montre;∎ he's putting out a lot of confusing signals son attitude n'est pas claire;∎ it was the first signal (that) the regime was weakening c'était le premier signe de l'affaiblissement du régime;∎ the demonstration is a clear signal to the government to change its policy la manifestation signifie clairement que le gouvernement doit changer de politique;∎ to send smoke signals envoyer des signaux de fumée∎ radio signal signal m radio;∎ Radio station signal indicatif m (de l'émetteur)formal insigne;∎ you showed a signal lack of tact vous avez fait preuve d'une maladresse insigne(a) (send signal to) envoyer un signal à;∎ to signal sb faire signe à qn;∎ he signalled the plane forward il a fait signe au pilote d'avancer;∎ the brain signals the muscles to contract le cerveau envoie aux muscles le signal de se contracter∎ the parachutist signalled his readiness to jump le parachutiste fit signe qu'il était prêt à sauter;∎ the linesman signalled the ball out le juge de ligne a signalé que le ballon était sorti;∎ the cyclist signalled a left turn le cycliste a indiqué qu'il tournait à gauche(c) (announce, mark → beginning, end, change) marquer;∎ the speech signalled a radical change in policy le discours a marqué une réorientation politique radicale;∎ this signals the start of the rainy season cela indique le début ou c'est le signe du début de la saison des pluies;∎ her resignation signalled the beginning of the end sa démission a marqué le début de la fin∎ to signal to sb to do sth faire signe à qn de faire qch;∎ he signalled for the bill il a fait signe qu'il voulait l'addition;∎ she was signalling for us to stop elle nous faisait signe de nous arrêter(b) (send signal) envoyer un signal;∎ the satellite is still signalling le satellite émet ou envoie toujours des signaux(c) Cars (with indicator) mettre son clignotant; (with arm) indiquer de la main un changement de directionNautical signal book code m international des signaux;Railways signal box poste m de signalisation;signal communications télécommunications fpl, transmissions fpl;signal lamp (for making signals) lampe f ou projecteur m de signalisation; (serving as a signal) (lampe f) témoin m;American signal red vermillon m chinois;signal rocket fusée f de signalisation;American signal tower poste m d'aiguillage
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