H. pylori
— Noun
– English
~ the type species of genus Heliobacter; produces urease and is associated with several gastroduodenal diseases (including gastritis and gastric ulcers and duodenal ulcers and other peptic ulcers)
Hypericum pyramidatum
— Noun
– English
~ perennial shrub having large star-shaped yellow flowers in narrowly pyramidal cymes
Hirundo pyrrhonota
— Noun
– English
~ North American swallow that lives in colonies and builds bottle-shaped mud nests on cliffs and walls
high quality
— Noun
– English
~ the quality of being superior
hangar queen
— Noun
– English
~ an airplane with a bad maintenance record
harness race
— Noun
– English
~ a horse race between people riding in sulkies behind horses that are trotting or pacing
human race
— Noun
– English
~ all of the living human inhabitants of the earth; "all the world loves a lover"; "she always used `humankind' because `mankind' seemed to slight the women"
hurdle race
— Noun
– English
~ a footrace in which contestants must negotiate a series of hurdles
horse race
— Noun
– English
~ a contest of speed between horses; usually held for the purpose of betting
harness racing
— Noun
– English
~ a horse race between people riding in sulkies behind horses that are trotting or pacing
hydroplane racing
— Noun
– English
~ racing in high-speed motor boats
horse racing
— Noun
– English
~ the sport of racing horses
Halicoeres radiatus
— Noun
– English
~ bluish and bronze wrasse; found from Florida keys to Brazil
hydroxyl radical
— Noun
– English
~ the monovalent group -OH in such compounds as bases and some acids and alcohols
hydrazo radical
— Noun
– English
~ the bivalent group -HNNH- derived from hydrazine
Hypochaeris radicata
— Noun
– English
~ European weed widely naturalized in North America having yellow flower heads and leaves resembling a cat's ears
horse radish
— Noun
– English
~ coarse Eurasian plant cultivated for its thick white pungent root
hair-raiser
— Noun
– English
~ excitation that makes your hair stand up or that chills your bones; "the movie was an old-fashioned hair-raiser"
hell raising
— Noun
– English
~ making trouble just for the fun of it