drier 1 compar of dry1. drier, 2 n => dry2. drier (also dryer), / ˈdraɪə(r); `draɪɚ/ n 1 (esp in compounds 尤用以构成复合词) machine that dries 脱水机: a `clothes drier a `hair-drier * a `tumble-drier. 2 substance mixed with paint or varnish to make it dry more quickly 乾燥剂.