13-letter words containing a, s, t, r, o, n
- antiterrorism — opposed to or acting against terrorism; counterterrorist
- antiterrorist — relating to measures, policies, or organizations designed to combat terrorist activity
- aphanipterous — of or relating to the wingless insects of the order Aphaniptera
- apperceptions — Plural form of apperception.
- appersonation — the unconscious assumption of the personality characteristics of another, usually well known, person.
- appreciations — Plural form of appreciation.
- apron strings — If you say that someone is tied to another person's apron strings, you mean that they are controlled or influenced too much by the other person.
- arachnoiditis — an inflammation of the arachnoid membrane
- argentiferous — containing or bearing silver
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arteriovenous — of, relating to, or affecting an artery and a vein
- articulations — Plural form of articulation.
- aspirationals — Plural form of aspirational.
- assassinators — Plural form of assassinator.
- astereognosis — inability to recognize objects by touch
- asthenosphere — a thin semifluid layer of the earth (100–200 km thick), below the outer rigid lithosphere, forming part of the mantle and thought to be able to flow vertically and horizontally, enabling sections of lithosphere to subside, rise, and undergo lateral movement
- astrodynamics — the study of the motion of natural and artificial bodies in space
- astronautical — of or relating to astronautics or astronauts.
- aten asteroid — one of a small group of asteroids whose orbits cross that of the earth and whose semimajor axes are smaller than that of the earth.
- athenagoras i — (Aristocles Spyrou) 1886–1972, Archbishop Ecumenical of Constantinople and Ecumenical Patriarch of the Greek Orthodox Church 1948–72.
- atherogenesis — (medicine) The formation of atheromas, especially on the walls of the arteries.
- atrociousness — The state of being atrocious.
- authorisation — Alternative spelling of authorization.
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- backing store — a computer storage device, usually a disk, that provides additional storage space for information so that it can be accessed and referred to when required and may be copied into the processor if needed
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- barosinusitis — aerosinusitis.
- bartholinitis — Inflammation of Bartholin's cyst.
- basement-rock — the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.
- basic fortran — (language) A subset of Fortran.
- bass trombone — the lower-pitched of the two main types of trombone
- bass-baritone — a singer or voice in the bass range with baritone qualities
- battlegrounds — Plural form of battleground.
- blamestorming — a discussion or meeting for the purpose of assigning blame.
- blarney stone — a stone in Blarney Castle, in the SW Republic of Ireland, said to endow whoever kisses it with the gift of the gab and skill in flattery
- body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
- boston matrix — a two-dimensional matrix, used in planning the business strategy of a large organization, that identifies those business units in the organization that generate cash and those that use it
- bowman's root — an eastern U.S. plant, Gillenia trifoliata, of the rose family, having terminal clusters of white flowers.
- brainstorming — intensive discussion to solve problems or generate ideas
- bring to pass — to cause to happen
- brown mustard — black mustard. See under mustard (def 2).
- by contraries — contrary to what is expected
- carbon offset — a compensatory measure made by an individual or company for carbon emissions, usually through sponsoring activities or projects which increase carbon dioxide absorption, such as tree planting
- carbon tissue — a sheet of paper coated with pigmented gelatine, used in the carbon process
- carbon-tissue — paper faced with a preparation of carbon or other material, used between two sheets of plain paper in order to reproduce on the lower sheet that which is written or typed on the upper.
- carbonisation — (chiefly, British) alternative spelling of carbonization.
- carcinologist — a person who specializes in carcinology
- carcinomatous — a malignant and invasive epithelial tumor that spreads by metastasis and often recurs after excision; cancer.
- carotid sinus — specialized nerve end organs producing a slight dilatation of the carotid artery where it branches into the external and internal carotid arteries, responding to changes in blood pressure by mediating changes in the heartbeat rate.