hb
— Noun
– English
~ 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"
HCFC
— Noun
– English
~ a fluorocarbon that is replacing chlorofluorocarbon as a refrigerant and propellant in aerosol cans; considered to be somewhat less destructive to the atmosphere
hcg
— Noun
– English
~ hormone produced early in pregnancy by the placenta; detection in the urine and serum is the basis for one kind of pregnancy test
hdl
— Noun
– English
~ a lipoprotein that transports cholesterol in the blood; composed of a high proportion of protein and relatively little cholesterol; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis
HDL cholesterol
— Noun
– English
~ the cholesterol in high-density lipoproteins; the `good' cholesterol; a high level in the blood is thought to lower the risk of coronary artery disease
HDTV
— Noun
– English
~ a television system that has more than the usual number of lines per frame so its pictures show more detail
he
— Noun
– English
~ the 5th letter of the Hebrew alphabet
he
— Noun
– English
~ a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
head
— Noun
– English
~ a rounded compact mass; "the head of a comet"
head
— Noun
– English
~ a membrane that is stretched taut over a drum
head blight
— Noun
– English
~ a blight of the heads of cereals
head
— Noun
– English
~ the length or height based on the size of a human or animal head; "he is two heads taller than his little sister"; "his horse won by a head"
head
— Noun
– English
~ the tip of an abscess (where the pus accumulates)
head
— Noun
– English
~ oral stimulation of the genitals; "they say he gives good head"
head
— Noun
– English
~ the subject matter at issue; "the question of disease merits serious discussion"; "under the head of minor Roman poets"
head
— Noun
– English
~ the foam or froth that accumulates at the top when you pour an effervescent liquid into a container; "the beer had a large head of foam"
head
— Noun
– English
~ an individual person; "tickets are $5 per head"
head
— Noun
– English
~ a V-shaped mark at one end of an arrow pointer; "the point of the arrow was due north"