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in the Oxford-Paravia Italian Dictionary

English
English
Italian
Italian

efficient [Brit ɪˈfɪʃ(ə)nt, Am əˈfɪʃənt] ADJ

1. efficient person, employee, management:

efficient
efficiente (at doing nel fare)
to make efficient use of energy
fare un uso razionale dell'energia

2. efficient machine, engine:

efficient
ad alto rendimento
to be 40% efficient
aver un rendimento del 40%

energy-efficient [Brit ˌɛnədʒɪɪˈfɪʃənt, Am ˌɛnərdʒiəˈfɪʃ(ə)nt] ADJ

energy-efficient heating system, lighting, building:

energy-efficient
ottimizzato

fuel-efficient [Am ˈfju(ə)ləˌfɪʃənt] ADJ

fuel-efficient system, engine:

fuel-efficient
a bassi consumi
Italian
Italian
English
English
efficiente
efficient
causa efficiente
efficient cause
sbrigativo persona
efficient
macchina ad alto rendimento
efficient machine
avere un rendimento del 40%
to be 40% efficient
causa efficiente
efficient cause

in the PONS Dictionary

English
English
Italian
Italian

efficient [ɪ·ˈfɪ·ʃnt] ADJ

efficient person
efficiente
efficient machine, system
ad alto rendimento
Italian
Italian
English
English
efficiente
efficient