Trimerous is an adjective used to describe a plant that has parts in sets of three. Synonyms for trimerous include trinary, tripartite and triquetrous. Trinary comes from the Latin word trinus, meaning "threefold" and is often used to describe objects made up of three parts. Tripartite, on the other hand, refers to something that has three distinct parts or divisions. Lastly, triquetrous means having three sharp edges or angles and is generally used to describe leaves, flowers or fruits which are formed in sets of three. Synonyms such as these allow for a more vivid description of the botanical structures and their shapes.