A role played by a foreign substance mixed with or attached to a given substance to enable the distribution or location of the latter to be determined subsequently.
[source: unknown]
Comment
None
Subset
None
Related
Link
to all annotated objects annotated to tracer.
Link
to all direct and indirect annotations
to tracer.
Link
to all direct and indirect annotations download (limited to first 10,000)
for tracer.
![[Reorder by subject]](https://browser.planteome.org/static/images/reorder.gif "Reorder by subject")
![[BFO:0000051 relation]](https://browser.planteome.org/static/images/BFO:0000051.gif "BFO:0000051 relation")
BFO:0000051
![[is_a relation]](https://browser.planteome.org/static/images/is_a.gif "is_a relation")
is_a
![[Current term]](https://browser.planteome.org/static/images/term_lineage_wedge.png "Current term")