n.[U]

1. 化学
2. 化学性质
   He is knowledgeable about the chemistry of metals.

   他对金属的化学性质知之甚多。

3. 化学作用
4. 男女间的“来电”

n.

1. the branch of science concerned with the properties and interactions of the substances of which matter is composed.
2. the chemical properties of a substance or body.
3. the emotional or psychological interaction between two people, especially when experienced as a powerful mutual attraction.