13-letter words containing h, r
- allylthiourea — thiosinamine.
- alongshoreman — a person employed to load and unload ships
- alonzo church — (person) A twentieth century mathematician and logician, and one of the founders of computer science. Church invented the lambda-calculus and posited a version of the Church-Turing thesis.
- alpha aurigae — Capella
- alpha blocker — any of various substances that interfere with the action of the alpha receptors.
- alpha carinae — Canopus1
- alpha emitter — a radioactive isotope that emits alpha particles
- alpha eridani — Achernar
- alpha orionis — Betelgeuse
- alpha scorpii — Antares
- alpha-blocker — any of a class of drugs that prevent the stimulation of alpha adrenoceptors, a type of receptor in the sympathetic nervous system, by adrenaline and noradrenaline and that therefore cause widening of blood vessels: used in the treatment of high blood pressure and prostatic hyperplasia
- alphabetarian — a person learning, or studying, the alphabet
- alphabetiform — having similarities to letters of the alphabet
- alphanumerics — Plural form of alphanumeric.
- altered chord — a chord in which one or more notes are chromatically changed by the introduction of accidentals
- althorp house — a mansion in Northamptonshire: seat of the Earls Spencer since 1508; originally a medieval house; altered (1787) to its present neoclassical style by Henry Holland. Diana, Princess of Wales is buried on Round Oval Island in the centre of the ornamental lake in Althorp Park
- aluminography — algraphy.
- aluminothermy — a process for reducing metallic oxides using finely divided aluminium powder. The mixture of aluminium and the oxide is ignited, causing the aluminium to be oxidized and the metal oxide to be reduced to the metal
- alveolar arch — the part of the upper or lower jawbone in which the teeth are set.
- amateur night — an entertainment featuring amateur performers, often in competition for prizes.
- amorphousness — lacking definite form; having no specific shape; formless: the amorphous clouds.
- amphigastrium — any of the small leaves or appendages on the under surface of the stem of some liverworts
- amphiprostyle — (esp of a classical temple) having a set of columns at both ends but not at the sides
- amphitheaters — Plural form of amphitheater.
- amphitheatral — relating to an amphitheatre, taking place in an amphitheatre
- amphitheatres — Plural form of amphitheatre.
- amphitheatric — Of, pertaining to, exhibited in, or resembling an amphitheatre.
- amphitrichate — having a single flagellum at each end.
- amphitrichous — having a single flagellum at each end.
- amphitryon 38 — a play (1938) by Jean Giraudoux.
- amphotericins — Plural form of amphotericin.
- anachronistic — You say that something is anachronistic when you think that it is out of date or old-fashioned.
- anachronously — in an anachronous manner
- anaphorically — referring back to or substituting for a preceding word or group of words: anaphoric reference.
- anaphrodisiac — tending to lessen sexual desire
- anathematizer — One who anathematizes; a severe critic.
- anchor pocket — a recess in the bow of a vessel, for housing a stockless anchor.
- anchorpersons — Plural form of anchorperson.
- angel's share — the amount of alcoholic liquor that evaporates during distillation.
- angular house — any of the four astrological houses that begin at the angles: the first, fourth, seventh, and tenth houses, that correspond, respectively, to self, home, others, and career.
- anharmonicity — (mechanics) Of or pertaining to the deviation of a system from harmonicity (being a harmonic oscillator).
- animal rights — People who are concerned with animal rights believe very strongly that animals should not be exploited or harmed by humans.
- animal starch — glycogen.
- anise camphor — anethole.
- anna christie — a play (1921) by Eugene O'Neill.
- anno hebraico — A.H.
- another place — the other House of Parliament (used in the House of Commons to refer to the House of Lords and vice versa)
- another-guess — of another kind.
- ante-christum — before Christ. Abbreviation: A.C.
- anthony hoare — (person) (C. Anthony R. Hoare, Tony) A computer scientist working on programming languages, especially parallel ones. Hoare was responsible for Communicating Sequential Processes (CSP). See also: pointer, Simone.