13-letter words containing s, i, n, o, r
- antireligious — opposed to religious ideas, beliefs, and organizations
- antiresonance — a phenomenon in an electric, acoustic, or other such system in which the impedance is tending to infinity.
- antiscorbutic — preventing or curing scurvy
- antisudorific — an antiperspirant.
- 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.
- apprehensions — Plural form of apprehension.
- 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.
- arabian horse — one of a breed of horses, raised originally in Arabia and adjacent countries, noted for intelligence, grace, and speed.
- arachnivorous — Spider-eating.
- arachnoiditis — an inflammation of the arachnoid membrane
- argentiferous — containing or bearing silver
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arteriovenous — of, relating to, or affecting an artery and a vein
- articulations — Plural form of articulation.
- arundinaceous — resembling a reed
- aspirationals — Plural form of aspirational.
- assassinators — Plural form of assassinator.
- astereognosis — inability to recognize objects by touch
- 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.
- aum shinrikyo — a syncretistic Japanese cult combining elements of Buddhism, Hinduism, and Christianity, founded by Shoko Asahara in 1986; responsible for a number of murders and in particular a nerve-gas attack on the Tokyo underground in 1995
- authorisation — Alternative spelling of authorization.
- 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
- banderilleros — Plural form of banderillero.
- banking hours — the hours during which a bank is open for business
- barosinusitis — aerosinusitis.
- bartholinitis — Inflammation of Bartholin's cyst.
- basic fortran — (language) A subset of Fortran.
- bass-baritone — a singer or voice in the bass range with baritone qualities
- bearing sword — a large sword carried for its owner by a squire or servant because of its size.
- bildungsroman — a novel concerned with a person's formative years and development
- bioconversion — the use of biological processes or materials to change organic substances into a new form, such as the conversion of waste into methane by fermentation
- bioenergetics — the study of energy transformations in living organisms and systems
- bird dismount — Hecht1 (def 1).
- bishop's ring — a reddish-brown corona occasionally seen around the sun, caused by volcanic dust in the atmosphere.
- blamestorming — a discussion or meeting for the purpose of assigning blame.
- boarding fees — fees paid for boarding at a school
- boarding pass — A boarding pass is a card that a passenger must have when boarding a plane or a boat.
- boardinghouse — a private house in which accommodation and meals are provided for paying guests