tracer
tracer defined in 1951 year
tracer - tracer;tracer - The atoms of most chemical elements are not all alike, but are of a few different kinds, called isotopes, differing in atomic weight but not in chemical properties. Some isotopes are very rare naturally, and these can be concentrated; and many radioactive ones can be prepared artificially. These isotopes are used experimentally as 'tracers'; i.e. they can be incorporated into compounds of biological importance, administered to an organism, and their movements and changes of chemical combination determined by analysis of the organism, or of its products. The radioactive isotopes are particularly easy to follow by their radiation; for instance by autoradiographs.
near tracer in Knolik
| trace element | home letter "T" start from "TR" | trachea |
definition of word "tracer" was readed 158 times