oestrus

['ɛstrəs]

Male peacock: Bah, you are mean, old love sees my oestrus!: 雄孔雀: 呸, 你们下流, 老爱看我发情!

He increased the reproduction rate of rabbits by inducing oestrus.: 他使用催情的方法来提高兔子的繁殖率.