9-letter words that end in a
- anacostia — a section of the District of Columbia, in the SE part.
- anaglypta — a type of thick embossed wallpaper
- analgesia — inability to feel pain
- anaphoria — (symptom) A tendency for both eyes to look upward.
- anaplasia — reversion of plant or animal cells to a simpler less differentiated form
- anarthria — loss of the ability to speak coherently
- anastasia — Grand Duchess. 1901–?18, daughter of Tsar Nicholas II, believed to have been executed by the Bolsheviks in 1918, although several women subsequently claimed to be her
- anchoveta — a small anchovy, Cetengraulis mysticetus, of the American Pacific, used as bait by tuna fishermen
- andalusia — a region of S Spain, on the Mediterranean and the Atlantic, with the Sierra Morena in the north, the Sierra Nevada in the southeast, and the Guadalquivir River flowing over fertile lands between them; a centre of Moorish civilization; it became an autonomous region in 1981. Area: about 87 280 sq km (33 700 sq miles)
- andromeda — the daughter of Cassiopeia and wife of Perseus, who saved her from a sea monster
- angiomata — a benign tumor consisting chiefly of dilated or newly formed blood vessels (hemangioma) or lymph vessels (lymphangioma)
- angophora — any tree of the genus Angophora, related to the eucalyptus and native to E Australia
- angostura — the bitter, aromatic bark of either of two South American citrus trees, Galipea officinalis or G. cusparia, used in medicine and in the preparation of liqueurs and bitters.
- anhedonia — the inability to feel or experience pleasure
- annapurna — a massif of the Himalayas, in Nepal. Highest peak: 8078 m (26 502 ft)
- anodontia — the congenital absence of teeth
- anonychia — congenital absence of the nails.
- anoxaemia — a deficiency in the amount of oxygen in the arterial blood
- antaranga — the three angas pertaining to the mind: dharana or concentration, dhyana or meditation, and samadhi or contemplation.
- antipasta — Misspelling of antipasto.
- apiphobia — An inordinate fear of bees.
- apocrypha — the 14 books included as an appendix to the Old Testament in the Septuagint and the Vulgate but not included in the Hebrew canon. They are not printed in Protestant versions of the Bible
- apophenia — (psychology) The perception of or belief in connectedness among unrelated phenomena.
- apothecia — the fruit of certain lichens and fungi: usually an open, saucer-shaped or cup-shaped body, the inner surface of which is covered with a layer that bears asci.
- appaloosa — a breed of horse, originally from America, typically having a spotted rump
- aprosexia — Inability to concentrate.
- aqua pura — pure water; esp., distilled water
- aquatinta — (dated, arts) aquatint.
- aquilegia — columbine
- aracatuba — a city in SE Brazil.
- araucania — a region of central Chile, inhabited by Araucanian Indians
- araucaria — any tree of the coniferous genus Araucaria of South America, Australia, and Polynesia, such as the monkey puzzle and bunya-bunya
- arctogaea — a zoogeographical area comprising the Palaearctic, Nearctic, Oriental, and Ethiopian regions
- areflexia — (pathology) Lack of neuromuscular reflexes. A symptom associated with many neurological disorders.
- argentina — a republic in southern South America: colonized by the Spanish from 1516 onwards; gained independence in 1816 and became a republic in 1852; ruled by military dictatorships for much of the 20th century; civilian rule restored in 1983; consists chiefly of subtropical plains and forests (the Chaco) in the north, temperate plains (the pampas) in the central parts, the Andes in the west, and an infertile plain extending to Tierra del Fuego in the south (Patagonia); an important meat producer. Language: Spanish. Religion: Roman Catholic. Currency: peso. Capital: Buenos Aires. Pop: 42 610 981 (2013 est). Area: 2 776 653 sq km (1 072 067 sq miles)
- argumenta — appeals to reason
- arhythmia — arrhythmia.
- arimathea — a town in ancient Palestine: location unknown
- arpillera — a Peruvian hand-sewn wall-hanging, typically of exquisite detail
- arracacha — a South American plant, Arracacia xanthorrhiza, the root of which is edible and is a popular food in South America
- artemisia — any herbaceous perennial plant of the genus Artemisia, of the N hemisphere, such as mugwort, sagebrush, and wormwood: family Asteraceae (composites)
- arteriola — (anatomy) An arteriole.
- arthrodia — a joint
- asafetida — a bad-smelling gum resin obtained from various Asiatic plants (genus Ferula) of the umbel family: it was formerly used to treat some illnesses or, in folk medicine, to repel disease
- asahigawa — a city on W central Hokkaido, in N Japan.
- asahikawa — city in central Hokkaido, Japan: pop. 360,000
- asbomania — the perceived indiscriminate and excessive use by the authorities of anti-social behaviour orders in dealing with people causing a nuisance to their fellow citizens
- ascogonia — Plural form of ascogonium.
- ashtabula — a port in NE Ohio, on Lake Erie.
- astrangia — a genus of corals forming small, encrusting colonies, found in shallow waters off both coasts of the U.S.