Assertion: heavy water | /r/ObjectUse | used in biology
Facets:
value: as an isotope tracer
type: PURPOSE
Source sentences:
text: Heavy water is used in chemistry, biology, and hydrology as an isotope tracer.
text: Heavy water is used in chemistry, biology, and hydrology as an isotope tracer.
text: Heavy water is used in chemistry, biology, and hydrology as an isotope tracer.