English Dictionary |
HB
Pronunciation (US): | (GB): |
Dictionary entry overview: What does Hb mean?
• HB (noun)
The noun HB has 1 sense:
1. 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
Familiarity information: HB used as a noun is very rare.
Dictionary entry details
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
Classified under:
Nouns denoting substances
Synonyms:
haemoglobin; Hb; hemoglobin
Context example:
fish have simpler hemoglobin than mammals
Hypernyms ("Hb" is a kind of...):
haemoprotein; hemoprotein (a conjugated protein linked to a compound of iron and porphyrin)
Meronyms (substance of "Hb"):
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 "Hb"):
oxyhaemoglobin; oxyhemoglobin (the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs)
Holonyms ("Hb" 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 red respiratory protein of erythrocytes, consisting of approximately 3.8% heme and 96.2% globin (64.5 KD), which as oxyhemoglobin (HbO2) transports oxygen from the lungs to the tissues where the oxygen is readily released and HbO2 becomes Hb.
(Hemoglobin, NCI Thesaurus)
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