9-letter words that end in a
- hemiptera — the order comprising the true bugs.
- hemogenia — pseudohemophilia.
- henrietta — a female given name, form of Henry.
- herbivora — grass-eating animals collectively
- hexahedra — plural of hexahedron: solid figure with six plane faces
- hibakusha — a survivor of either of the atomic bomb attacks on Hiroshima and Nagasaki, Japan, in 1945.
- hieratica — a type of papyrus noted for its high quality and used by the ancient Egyptians in sacred books
- hill myna — an Asian bird of the genus Gracula, of the starling family Sturnidae, especially G. religiosa, that has glossy black plumage and yellow neck wattles and is easily tamed and taught to mimic speech.
- hippolyta — a queen of the Amazons, variously said to have been killed by Hercules or to have been conquered and married by Theseus.
- hiratsuka — a city in central Honshu, Japan, near Yokohama.
- hiroshima — a seaport on SW Honshu, in SW Japan: first military use of atomic bomb August 6, 1945.
- hirudinea — the class comprising the leeches.
- hobohemia — A community of hoboes.
- hollandia — former name of Jayapura.
- homer lea — Homer, 1876–1912, U.S. soldier and author: adviser 1911–12 to Sun Yat-sen in China.
- homophora — A reference that requires some type of general knowledge to understand.
- honoraria — a payment in recognition of acts or professional services for which custom or propriety forbids a price to be set: The mayor was given a modest honorarium for delivering a speech to our club.
- hortensia — Hydrangea.
- houstonia — any North American plant, belonging to the genus Houstonia, of the madder family, especially H. caerulea, the common bluet.
- huang hua — 1913–2010, Chinese Communist statesman; minister for foreign affairs (1976–83)
- hula-hula — a sinuous Hawaiian native dance with intricate arm movements that tell a story in pantomime, usually danced to rhythmic drumming and accompanied by chanting.
- hyalonema — a species of sponge with a long stem made up of long, twisted glass-like fibres
- hybridoma — a hybrid cell made in the laboratory by fusing a normal cell with a cancer cell, usually a myeloma or lymphoma, in order to combine desired features of each, as the ability of the cancer cell to multiply rapidly with the ability of the normal cell to dictate the production of a specific antibody.
- hydraemia — the state of having an excess of water in the blood.
- hydrangea — any shrub belonging to the genus Hydrangea, of the saxifrage family, several species of which are cultivated for their large, showy flower clusters of white, pink, or blue.
- hydrosoma — hydrosome.
- hypanthia — Plural form of hypanthium.
- hyperbola — the set of points in a plane whose distances to two fixed points in the plane have a constant difference; a curve consisting of two distinct and similar branches, formed by the intersection of a plane with a right circular cone when the plane makes a greater angle with the base than does the generator of the cone. Equation: x 2 /a 2 − y 2 /b 2 = ±1.
- hyperemia — an abnormally large amount of blood in any part of the body.
- hypernova — (astronomy) The gravitational collapse of a massive star to form a black hole.
- hyperopia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hyperoxia — (pathology) A condition caused by an excess of oxygen in tissues and organs.
- hyperpnea — abnormally deep or rapid respiration.
- hypoderma — hypodermis.
- hypomania — a mania of low intensity.
- hypophora — (rhetoric) A device in which the author poses a question which is in turn answered.
- hypopnoea — Alternative spelling of hypopnea.
- hypostoma — Hypostome.
- hypotheca — (microbiology, planktology) The lower or posterior half of the theca of a thecate protist such as a diatom or dinoflagellate.
- hypotonia — An abnormal loss of muscle tone.
- hypoxemia — inadequate oxygenation of the blood.
- hywel dda — known as Hywel the Good. died 950 ad, Welsh prince. He united S and N Wales and codified Welsh law
- ibm 370xa — (computer, IBM) An IBM mainframe computer introduced in 1983. Successor to the System/370, this machine had an enhanced address space.
- iechyd da — a drinking toast; good health; cheers
- il sodoma — (Giovanni Antonio de Bazzi) [jaw-vahn-nee-ahn-taw-nyaw-de-baht-tsee] /dʒɔˈvɑn ni ɑnˈtɔ nyɔ dɛˈbɑt tsi/ (Show IPA), 1477–1549, Italian painter.
- illawarra — a coastal district of E Australia, in S New South Wales. Pop: 404 626 (2002 est)
- iminourea — guanidine.
- in camera — a judge's private office.
- inamorata — a woman who loves or is loved; female sweetheart or lover.
- incognita — a woman or girl who is incognita.