The crossword solution for the term NUT, E.G. is SEED. A SEED is a small embryonic plant enclosed in a covering called the SEED coat, usually with some stored food. Seeds are the product of the ripened ovule of gymnosperm and angiosperm plants. They are the means by which angiosperms disperse their offspring over wide areas. Seeds have been an important part of the human diet since pre-historic times and are still a major food source today.