Definitions

1. adjective

Having the same water potential, especially in plants; not showing a significant difference in water potential between day and night.

“The isohydric plants adapted well to the dry climate, but the anisohydric plants struggled to survive.”

2. noun

A plant that has the same water potential throughout the day, especially one that does not show a significant difference in water potential between day and night.

“The isohydric plants in the forest were able to conserve water more efficiently than the anisohydric plants nearby.”