wheatgerm

Example:The seed coat of a wheat grain protects the embryo (wheat germ) and is not used for nutritional purposes by humans.

Definition:The outer layer of a seed, protecting the inner parts such as the embryo, from soil-dwelling fungi, bacteria, and parasitic weeds.

Example:The husk of a wheat grain is protective but does not contain the same nutritional value as the germ.

Definition:The outer layer of the seed or kernel of certain plants, typically consisting of a tough, fibrous covering.