形容词

1. 较少的；较轻的；较小的
You use lesser in order to indicate that something is smaller in extent, degree, or amount than another thing that has been mentioned.

2. 次要的；较不重要的
You can use lesser to refer to something or someone that is less important than other things or people of the same type.

3. （用在鸟类、哺乳动物、植物等名称中）小
Lesser is used in the names of some species of birds, animals, and plants.

4. the lesser of two evils - see evil

1. smaller in size or amount or value

e.g. the lesser powers of Europe
the lesser anteater

2. of less size or importance

e.g. the lesser anteater
the lesser of two evils