VariousWords beta
Definitions:
Noun
hemoglobin
haemoglobin
Hb
Definition: 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; "fish have simpler hemoglobin than mammals"
Definition: Initialism of horizontal branch.
Adjective
Definition: hard black (describing a pencil that makes lighter marks than a grade B, but darker marks than a grade H pencil)