in·cu·nab·u·lum /ˌɪnkjəˈnæbjələm, ˌɪŋ-/ 最初期,古版書
In·cu·nab·u·lum n.; pl. Incunabula A work of art or of human industry, of an early epoch; especially, a book printed before a. d. 1500. ◄ ►