Essential nutrients refers to classes of nutrients found in food. Essential nutrients are simply those that are vital for the normal growth, maintenance and development of the body. There might be a slight confusion about essential nutrients that must be addressed.
Definition of waterproof for English Language Learners. : 1  designed to prevent water from entering or passing through. : 2  designed so that water alone will not remove it.
Effect of water repellent on a shell layer Gore-Tex jacket (HaglÃ¶fs Heli II). Waterproof fabrics are fabrics that are inherently, or have been treated to become, resistant to penetration by water and wetting. The term waterproof refers to conformance to a governing specification and specific conditions of a laboratory test method.