Douglas Harper's Etymology Dictionary
1910, from photosynthesis + -ize. Related: Photosynthesized; photosynthesizing.
Wiktionary
vb. To synthesize carbohydrates from carbon dioxide and water using the energy of light by photosynthesis
Usage examples of "photosynthesize".
The energy for his little ecosystem came from his armor, for he had adjusted the outer plates to radiate in the infrared, and draped the whole affair in a thermophilic fungus organism like pale seaweed, to photosynthesize heat energy and start the simple food chain.
The bulk of the Tree, orbiting the Earth, was a glowing green ball of branches and leaves, photosynthesizing busily.
For one thing, cyanobacteria survived the experience, and they photosynthesize.
There were things that ate other things, like terrestrial saprophytes and carnivorous plants, but they all photosynthesized, as well.
The airborne sacs of gas-filled plant life drifted at an equilibrium level in the clouds and photosynthesized by soaking up sunlight, water vapor, and chemicals from the clouds.
Earth's biosphere (most everything that grows, moves, breathes, photosynthesizes, or reads F&SF) is constructed mostly of waterlogged carbon, with a little nitrogen, phosphorus and such for leavening.
All life-forms were photosynthesizing or saprophagous, living offlight or death, not off life.