14-letter words containing a, t, h, i
- archaeometrist — a person who uses archaeometry
- archebacterium — (biology) alternative spelling of archaebacterium.
- archetypically — the original pattern or model from which all things of the same kind are copied or on which they are based; a model or first form; prototype.
- archgenethliac — the person most proficient at casting horoscopes
- archidiaconate — the office, term of office, or area of jurisdiction of an archdeacon
- archimandrites — Plural form of archimandrite.
- archipterygium — (anatomy) A primitive fin, like that of Ceratodus.
- architectonics — the science of architecture
- arithmetically — the method or process of computation with figures: the most elementary branch of mathematics.
- aromatherapist — An aromatherapist is a person who is qualified to practise aromatherapy.
- art exhibition — an exhibition of works of art such as pictures
- art historical — of or relating to the history of art or to its study: art historical documents on 16th-century painting.
- art-historical — of or concerned with the history of art
- arteriographic — relating to arteriography
- arthrocentesis — The clinical procedure of using a syringe to collect synovial fluid from a joint capsule, used in the diagnosis of gout, arthritis, and synovial infections.
- arthroconidium — A kind of asexual fungal spore, typically produced by segmentation of pre-existing fungal hyphae.
- arthrogryposis — (countable, pathology) The permanent fixation of a joint in a contracted position.
- arthroplasties — Plural form of arthroplasty.
- assistantships — Plural form of assistantship.
- asthenospermia — (medicine) Loss or reduction in the strength or energy of sperm cells, hence infertility. Not always infertile many are subfertile.
- asthenospermic — (medicine) Characterised by or pertaining to asthenospermia, hence infertile.
- asthenospheric — relating to the asthenosphere
- astrochemistry — the study of the chemistry of celestial bodies and space, esp by means of spectroscopy
- astrolithology — The science of aerolites.
- astrophysicist — An astrophysicist is someone who studies astrophysics.
- asynchronicity — (uncountable) The state of being asynchronous.
- asynchronistic — Not synchronistic.
- at first blush — when first seen; as a first impression
- at first sight — If you say that something seems to have certain characteristics at first sight, you mean that it appears to have the features you describe when you first see it but later it is found to be different.
- at the outside — You use at the outside to say that you think that a particular amount is the largest possible in a particular situation, or that a particular time is the latest possible time for something to happen.
- athletic coach — a person qualified to train athletes
- athletic heart — nonpathological enlargement of the heart resulting from intensive aerobic exercise.
- atomic physics — the branch of physics concerned with the structure and behaviour of atomic nuclei
- aurothiomalate — (chemistry) A thiomalate with the addition of gold.
- austrian shade — a window shade in which the fabric falls in a series of puffy festoons created by vertical rows of shirring.
- authenticating — to establish as genuine.
- authentication — to establish as genuine.
- authorisations — Plural form of authorisation.
- authoritarians — Plural form of authoritarian.
- authority file — a file, either on cards or in machine-readable format, in which decisions involving bibliographic records, particularly for form of entry, are recorded to establish a precedent or rule for subsequent decisions and to provide for consistency of entries.
- authorizations — Plural form of authorization.
- autobiographer — a person who writes the story of his or her own life
- autobiographic — marked by or dealing with one's own experiences or life history; of or in the manner of an autobiography: autobiographical material; an autobiographical novel.
- autoradiograph — a photograph showing the distribution of a radioactive substance in a specimen. The photographic plate is exposed by radiation from the specimen
- azidothymidine — an antiretroviral drug used to treat HIV/AIDS
- azimuth circle — a device for measuring azimuths, consisting of a graduated ring equipped with a sighting vane on each side, which fits concentrically over a compass.
- babies'-breath — baby's breath
- backscratching — a long-handled device for scratching one's own back.
- bacteriophages — Plural form of bacteriophage.
- balance weight — a weight used in machines to counterbalance a part, as of a crankshaft