1Red ochre, ruddle.
2Geology (also Red Chalk) chalk of a red colour, occurring especially in eastern England; a bed of such chalk.
Mid 16th century; earliest use found in Thomas Elyot (c1490–1546), humanist and diplomat.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。