a compound containing nitrogen and oxygen. There are several different nitrates and they are used especially to make soil better for growing crops.硝酸盐；硝态氮肥- We need to cut nitrate levels in water.我们需要降低水中的硝酸盐含量。🔊🔊
Topics Farmingc2Word Originlate 18th cent.: from French (from nitre, from Latin nitrum, from Greek nitron + -ate).