In relation to plants, what does the term 'angiosperm' refer to?

The term 'angiosperm' refers specifically to a group of flowering plants that produce seeds enclosed within a fruit. This characteristic distinguishes angiosperms from other plant groups, such as gymnosperms, where seeds are not enclosed in a fruit. The presence of flowers is a key feature of angiosperms, as they are the reproductive structures that facilitate pollination and fertilization, leading to the formation of seeds. Furthermore, the fruit that develops from the flower serves to protect the seeds and aid in their dispersal. This unique combination of flowers, seeds, and fruit makes angiosperms the most diverse and widely distributed group of plants on Earth, encompassing a vast variety of forms ranging from trees to herbs and grasses.