Double fertilization refers to the situation in which a sperm is fused with the egg to form the embryo and another sperm combines with the polar nucleus to yield the endosperm.
Hence, the term double fertilization refers to the situation in which a sperm is fused with the egg to form the embryo and another sperm combines with the polar nucleus to yield the endosperm.
Learn more about double fertilization: https://brainly.com/question/14592788