protohemin

9.9

A reddish-brown chemical made from blood in tests to show blood is present

noun
/ˌproʊtoʊˈhiːmɪn/

Specialized

: protohemina

The presence of protohemin confirmed the existence of blood in the sample.

Examples

Researchers isolated protohemin from the broken-down hemoglobin during the experiment.
The lab technician analyzed the protohemin sample for blood detection.
In forensic analysis, protohemin is often formed when testing for blood stains.
Can protohemins be used to confirm the presence of blood?
In forensic analysis, protohemin is often formed when testing for blood stains.
The presence of protohemin confirmed the existence of blood in the sample.
Researchers isolated protohemin from the broken-down hemoglobin during the experiment.

Synonyms

hemin

vsprotohemin

Specialized

1 9.9

A reddish-brown chemical used in lab tests to find blood

is a chloride derivative produced from hemoglobin specifically in tests to detect blood

Surface Forms

protohemin singular

protohemins plural

Morphology

protohemin = hemin (opaque) = proto + hemin

The word is formally built from proto- + hemin, but the chemical term is specialized and not readily predictable from the parts for an average learner.

Etymology

Protohemin combines the beginning proto- meaning 'first' and hemin, from heme meaning 'blood', as in hemoglobin. So protohemin is the 'first' form of the red part of blood, which explains why it is the reddish-brown substance seen when hemoglobin breaks down in lab tests.