| trace element | |
| —n | |
| any of various chemical elements, such as iron, manganese, zinc, copper, and iodine, that occur in very small amounts in organisms and are essential for many physiological and biochemical processes | |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
trace element n.
A chemical element required in minute quantities by an organism to maintain proper physical functioning.
A minute quantity or amount, as of a chemical compound.
| trace element (trās) Pronunciation Key
An element present in an organism in only very small amounts but essential for normal metabolism. iodine and cobalt are trace elements required by humans. |