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.
Tamperproofing is a term sometimes used for a methodology used to hinder, deter or detect unauthorised access to a device or circumvention of a security system. Since any device or system can be foiled by a person with sufficient knowledge, equipment, time, etc., the term tamperproof is a misnomer. Tamper resistance and tamper-evident systems and devices are better terminology.