12-letter words that end in a
- horn antenna — a microwave aerial, formed by flaring out the end of a waveguide
- hypaesthesia — an abnormally weak sense of pain, heat, cold, or touch.
- hyperalgesia — an exaggerated sense of pain (opposed to hypalgesia).
- hypergraphia — (psychiatry) A behavioural condition characterised by an intense desire to write, associated with changes in the temporal lobes due to epilepsy or chemical changes.
- hyperkalemia — an abnormally high concentration of potassium in the blood.
- hyperkinesia — Pathology. an abnormal amount of uncontrolled muscular action; spasm.
- hyperlipemia — excessive amounts of fat and fatty substances in the blood; lipemia.
- hyperpyrexia — an abnormally high fever.
- hypersarcoma — a growth of proud or fungous flesh
- hypersthenia — abnormal strength or tension
- hyperthermia — Pathology. abnormally high fever.
- hypervolemia — (medicine) An abnormal increase in the volume of blood circulating through the body.
- hypocalcemia — an abnormally small amount of calcium in the blood.
- hypochondria — Also, hypochondriasis [hahy-poh-kuh n-drahy-uh-sis] /ˌhaɪ poʊ kənˈdraɪ ə sɪs/ (Show IPA). Psychiatry. an excessive preoccupation with one's health, usually focusing on some particular symptom, as cardiac or gastric problems.
- hypoesthesia — an abnormally weak sense of pain, heat, cold, or touch.
- hypoglycemia — an abnormally low level of glucose in the blood.
- hypokalaemia — Alternative form of hypokalemia.
- hypomyotonia — abnormally diminished muscular tone.
- hyponatremia — (medicine) An abnormally low concentration of sodium (or salt) in blood plasma.
- hypovolaemia — Alternative form of hypovolemia.
- hysteromania — unusually increased sexual desire in a woman
- ichthyocolla — a fish glue or gelatine used as food or medicine
- ichthyofauna — the indigenous fish of a region.
- imogene coca — Imogene, 1908–2001, U.S. comic actress.
- import quota — the maximum amount of a product that can be imported into a country within a given period of time
- in one's dna — existing as a fundamental and inseparable part of one’s character
- in-goal area — the area between the goal-line and the dead-ball line
- indian cobra — a highly venomous cobra, Naja naja, common in India, having markings resembling a pair of spectacles on the back of the hood.
- infant apnea — a temporary suspension of breathing, occurring in some newborns (infant apnea) and in some adults during sleep (sleep apnea)
- intermaxilla — (anatomy) premaxilla.
- ishtar terra — a plateau region in the northern hemisphere of Venus.
- islamophobia — Alternative capitalization of Islamophobia.
- ismail pasha — 1830–95, viceroy and khedive of Egypt 1863–79.
- isosthenuria — the inability of the kidneys to dilute or concentrate urine
- itapetininga — a city in E Brazil.
- jelenia gora — a city in SW Poland, a historic mining center.
- juan de fuca — a strait between Vancouver Island and NW Washington. 100 miles (160 km) long; 15–20 miles (24–32 km) wide.
- juiz de fora — a city in SE Brazil, N of Rio de Janeiro.
- kanchenjunga — a mountain in S Asia, between NE India and Nepal, in the E Himalayas: third highest in the world. 28,169 feet (8586 meters).
- karmadharaya — a compound of two words in which the first is an adjective and the second a substantive, as blackbird, gentleman, or grandson.
- katharevousa — The purist form of modern Greek used in traditional literary writing, as opposed to the form that is spoken and used in everyday writing (called demotic).
- keitai tanka — a 31-syllable Japanese poem, composed and distributed using a mobile phone
- ketoaciduria — (pathology) The presence of (excess) ketoacids in the urine.
- kinaesthesia — kinesthesia.
- kinchinjunga — Kanchenjunga.
- kinesophobia — Fear of movement.
- la mano nera — Black Hand (def 1).
- labia majora — female genitals: outer folds of skin
- labia minora — female genitals: inner folds of skin
- labrador tea — a North American bog shrub, Ledum groenlandicum, of the heath family, having evergreen leaves and rounded clusters of white flowers.