OPUSCULE Meaning of OPUSCULE in English [ ə'pʌskju:l ](also opusculum ə'pʌskjʊləm ) ■ noun ( plural ~s or opuscula -lə ) rare a small or minor opus.OriginC17: from Fr., from L. opusculum , dimin. of opus 'work'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004