rut

n. 轍跡、凹槽、常規、慣例、發情期

vi. 交尾、發情

vt. 挖槽於

學術名詞

• 起水：動物學、發生學
• 動情：動物學
• 車轍：機械工程
• 轍：機械工程
• 發情：海事
• 交尾：海事

英文釋義

1. a groove or furrow (especially one in soft earth caused by wheels)
2. a settled and monotonous routine that is hard to escape
3. applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
4. be in a state of sexual excitement; of male mammals