defoliant /di:'fәuliәnt/ GRE英语词汇 📖 中文释义 n. 脱叶剂, 落叶剂[化] 脱叶剂 🧩 词形变化 复数 defoliants 📘 English Definition(英文释义) n. a chemical that is sprayed on plants and causes their leaves to fall off ← defolation defoliants →