1. 光合酌：photometer 光度计 | photosynthesis 光合酌 | phreatic line 浸润线

2. 光合：photosensitivity 感光性 | photosynthesis 光合 | photosynthesis model 光合成模型

3. 光合成：phloem-靭皮部 | photosynthesis-光合成 | phototropism-光屈性

1. 光合作用；光能合成
Photosynthesis is the way that green plants make their food using sunlight.

noun

1. synthesis of compounds with the aid of radiant energy (especially in plants)