| / English Dictionary |
HEMOGLOBIN
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
Example:
fish have simpler hemoglobin than mammals
Synonyms:
Classified under:
Hypernyms ("hemoglobin" is a kind of...):
haemoprotein; hemoprotein (a conjugated protein linked to a compound of iron and porphyrin)
Meronyms (substance of "hemoglobin"):
haem; haemitin; hematin; heme; protoheme (a complex red organic pigment containing iron and other atoms to which oxygen binds)
globin; haematohiston; hematohiston (a colorless protein obtained by removing heme from hemoglobin; the oxygen carrying compound in red blood cells)
Hyponyms (each of the following is a kind of "hemoglobin"):
oxyhaemoglobin; oxyhemoglobin (the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs)
Holonyms ("hemoglobin" is a substance of...):
erythrocyte; RBC; red blood cell (a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus)
Context examples:
The determination of the amount of partial pressure of oxygen when hemoglobin is half saturated that is present in a sample.
(P50 Oxygen Measurement, NCI Thesaurus)
A measurement of the partial pressure of oxygen when hemoglobin is half saturated in a biological specimen.
(P50 Oxygen Measurement, NCI Thesaurus/CDISC)
A unit for percentage measurement of any type or component of hemoglobin or its derivative such as methemoglobin; carboxyhemoglobin; sulfhemoglobin, etc. evaluated as fraction of total hemoglobin.
(Percent of Total Hemoglobin, NCI Thesaurus)
A measurement of the oxyhemoglobin, oxygen-bound hemoglobin, in a biological specimen.
(Oxyhemoglobin Measurement, NCI Thesaurus/CDISC)
The determination of the oxygen-hemoglobin saturation of a volume of blood.
(Oxygen Saturation Measurement, NCI Thesaurus)
A small amount of methemoglobin is present in the blood normally, but injury or toxic agents convert a larger proportion of hemoglobin into methemoglobin, which does not function reversibly as an oxygen carrier.
(Methemoglobinemia, NLM, Medical Subject Headings)
This allele, which encodes transcription factor NF-E2 45 kDa subunit protein, is involved in erythroid and megakaryocytic differentiation and hemoglobin metabolic processes.
(NFE2 wt Allele, NCI Thesaurus)
The determination of the maximum amount of oxygen that can be combined chemically with hemoglobin in a volume of blood.
(Oxygen Capacity Measurement, NCI Thesaurus)
A measurement of the carboxyhemoglobin, carbon monoxide-bound hemoglobin, in a biological specimen.
(Carboxyhemoglobin Measurement, NCI Thesaurus/CDISC)
Blue- or purplish-colored body; this is caused by excessive amounts of deoxygenated hemoglobin in the skin vessels of the body.
(Cyanotic Body, NCI Thesaurus)
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