The term ‘cotyledon’ is commonly referred to as ‘seed leaf’.
Cotyledons are the first leaves that appear on a plant embryo during the germination process. They are part of the seed and are crucial for the plant’s early development. The term ‘seed leaf’ highlights their role in providing initial nutrients to the growing seedling until true leaves develop and photosynthesis can begin. In dicots, you often find two cotyledons, while monocots generally have one.