Micronutrient and Trace element

Micronutrient noun - A substance needed only in small amounts for normal body function (e.g., vitamins or minerals).

Trace element and micronutrient are semantically related In some cases you can replace phrase "Trace element" with "Micronutrient", this terms are similar.

Trace element noun - An element that occurs at very small quantities in the body but is nonetheless important for many biological processes.

Micronutrient and trace element are semantically related in minor element topic. You can use "Micronutrient" instead a noun phrase "Trace element".