n.

1. 发展，进展[U]
   We studied the evolution of flowers from seeds and buds.

   我们研究从种籽和花蕾到花的成长过程。

2. （生物的）进化，演化；进化论[U]
   In the course of evolution, some birds have lost the power of flight.

   在演化过程中一些鸟失去了飞行的能力。

3. （气体的）放出[U]
4. 进化出来的东西[C]
5. 【数】开方

n.

1. the process by which different kinds of living organism are believed to have developed from earlier forms, especially by natural selection.
2. gradual development.
3. Chemistry  the giving off of a gaseous product, or of heat.
4. a pattern of movements or manoeuvres.
5. Mathematics,  dated the extraction of a root from a given quantity.