1A firework designed to be thrown into water. Now rare.
2North American. A water biscuit.
Mid 18th century; earliest use found in Godfrey Smith (fl. 1738–1756). From water + cracker.
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。