hoariness
/'hɔ:rɪnɪs/great age (especially gray or white with age)
noun [专属名词] 灰白；老年
The color of seed continuously changes with time from hoariness to celadon to olivine to khaki to deep yellow. 晶种制备过程中其颜色的变化为由灰白色—灰绿色—黄绿色—土黄—深黄色。
