helmetflower
- n a herbaceous plant of the genus Scutellaria which has a calyx that, when inverted, resembles a helmet with its visor raised
- n any of several orchids of the genus Coryanthes having racemes of a few musky-scented waxy flowers with a helmet-shaped lip process
- n a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite
helminth
- n worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes
helminthostachys
- n one species: terrestrial fern of southeastern Asia and Australia
helminthostachys zeylanica
- n Australasian fern with clusters of sporangia on stems of fertile fronds
helmut heinrich waldemar schmidt
- n German statesman who served as chancellor of Germany (born in 1918)
helmut schmidt
- n German statesman who served as chancellor of Germany (born in 1918)
heloderma
- n type genus of the Helodermatidae; American venomous lizards
heloderma horridum
- n lizard with black and yellowish beadlike scales; of western Mexico
heloderma suspectum
- n large orange and black lizard of southwestern United States; not dangerous unless molested