- Photo-epinasty
- Photo-epinasty Pho`to-ep"i*nas`ty, n. [See {Photo-}, and {Epinastic}.] (Bot.) A disproportionately rapid growth of the upper surface of dorsiventral organs, such as leaves, through the stimulus of exposure to light. --Encyc. Brit. [1913 Webster]
The Collaborative International Dictionary of English. 2000.