Trace Element

**Semantic type:** Element, Ion, or Isotope

**Definition:** Trace elements or dietary minerals are any of various chemical elements that occur in very small amounts in organisms and are essential for many physiological and biochemical processes. The term is also used to designate these elements and compounds containing them. (NCI)

**Synonyms:** - Micronutrient - Trace Mineral - Trace Nutrient - micronutrient - trace element