blacknessn. 黑、黑色、邪惡黑度學術名詞黑度:化學術語、物理學、電機工程、核能、機械工程、土木工程黑人特質:新聞傳播學鉛筆濃度:工程圖學英文釋義the quality or state of the achromatic color of least lightness (bearing the least resemblance to white)total absence of light