New American Oxford Dictionary
amicus
a mi cus |əˈmēkəs, əˈmī -əˈmikəs |(in full amicus curiae |ˈkyo͝orēˌī, -ēˌē |) ▶noun ( pl. amici |əˈmēkē, əˈmīkī |, amici curiae ) an impartial adviser, often voluntary, to a court of law in a particular case: [ as modifier ] : he was planning to advance this position in an amicus brief . ORIGIN early 17th cent.: from modern Latin amicus curiae, literally ‘friend of the court. ’
Oxford Dictionary
amicus
amicus |aˈmʌɪkəs |(in full amicus curiae |ˈkjʊərɪiː |) ▶noun ( pl. amici |-siː |, amici curiae ) an impartial adviser to a court of law in a particular case. ORIGIN early 17th cent.: modern Latin, literally ‘friend ’, (in full ) ‘friend of the court ’.