1. Amicus curiae, a legal Latin phrase translated to "friend of the court"; Amici Principis, another term for cohors amicorum, "cohort of friends"; Amici (crater), on the Moon Amici Forever, a band; Amici prism, a type of compound dispersive prism used in spectrometers; Amici roof prism, a type of reflecting prism used to deviate a beam of light by 90° while simultaneously