单词 nigredity 释义 † nigredity Obs. rare.[f. late L. nigrdo blackness.]Blackness.1547Boorde Brev. Health lxxiii. 24 In whose urynes any nygreditie or blackenes hath dominion.1597A. M. tr. Guillemeau's Fr. Chirurg. 29/2 Ther remayneth somtimes a nigredi...