The term RELATING TO PLANTS can be summarized by the word 'BOTANICAL, ' which is a nine-letter word. Botany is the scientific study of plants, including their structure, growth, reproduction, and classification. Botanists are scientists who specialize in the study of plants and their related fields. BOTANICAL gardens are places where plants are grown and studied for educational and research purposes. BOTANICAL products are derived from plants and used for medicinal, industrial, and other purposes.