A few amino acids (known as the essential amino acids) must come from food. 1  Animal sources of protein tend to deliver all the amino acids we need. 2  Other protein sources, such as fruits, vegetables, grains, nuts and seeds, lack one or more essential amino acids.
A surname is a name added to a given name and is part of a personal name. In many cases, a surname is a family name and many dictionaries define surname as a synonym of family name. In the western hemisphere, it is commonly synonymous with last name, since it is usually placed at the end of a person's given name.
Full Definition of SURNAME. 1. : an added name derived from occupation or other circumstance: nickname 1. 2. : the name borne in common by members of a family.See surname defined for English-language learners. See surname defined for kids. ADVERTISEMENT.ull Definition of SURNAME. 1. : an added name derived from occupation or other circumstance: nickname 1. 2. : the name borne in common by members of a family.