trace element

/treɪs ˌɛləmənt/

Other forms: trace elements

Definitions of trace element

1. noun

   an element that occurs at very small quantities in the body but is nonetheless important for many biological processes
   type of:

   chemical element, element

   any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter