indurate
indurate[ˈɪndjʊreɪt]verb- [with obj.][usu. as adj. indurated]harden
使变硬,使硬化
a bed of indurated clay.
一层硬化了的泥土。
派生indurationnounindurativeadjective语源- mid 16th cent. : from Latin indurat- 'made hard', from the verb indurare (based on durus 'hard')
考试词汇表