13-letter words containing a, s, r
- antisterility — free from living germs or microorganisms; aseptic: sterile surgical instruments.
- antisubmarine — (of weapons, missiles, etc) designed to combat or destroy submarines
- antisudorific — an antiperspirant.
- antisymmetric — (of a relation) never holding between a pair of arguments x and y when it holds between y and x except when x = y, as "…is no younger than…"
- antiterrorism — opposed to or acting against terrorism; counterterrorist
- antiterrorist — relating to measures, policies, or organizations designed to combat terrorist activity
- apatosauruses — Plural form of apatosaur.
- aperture mask — a perforated metal plate situated behind the faceplate of a color television picture tube and having holes aligned to insure that each of three electron beams strikes only its corresponding red, green, or blue phosphor dot.
- aphanipterous — of or relating to the wingless insects of the order Aphaniptera
- aphrodisiacal — having an aphrodisiac quality
- apocryphalist — A member of the group who supported the inclusion of the Apocrypha in the Bible.
- apogeotropism — negative geotropism, as shown by plant stems
- apostrophized — Simple past tense and past participle of apostrophize.
- apostrophizes — Third-person singular simple present indicative form of apostrophize.
- appeals court — An appeals court is the same as an appellate court.
- apperceptions — Plural form of apperception.
- appersonation — the unconscious assumption of the personality characteristics of another, usually well known, person.
- appoggiaturas — Plural form of appoggiatura.
- appreciations — Plural form of appreciation.
- apprehensible — capable of being comprehended or grasped mentally
- apprehensibly — In an apprehensive manner; cautiously.
- apprehensions — Plural form of apprehension.
- approach shot — a shot made to or towards the green after a tee shot
- appropriators — Plural form of appropriator.
- appurtenances — accessories or equipment
- april showers — showers falling in April, generally considered a showery month
- 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.
- aquaculturist — a person who practises aquaculture
- aqueous humor — a watery fluid in the space between the cornea and the lens of the eye
- arabian horse — one of a breed of horses, raised originally in Arabia and adjacent countries, noted for intelligence, grace, and speed.
- arabian senna — a tropical leguminous plant, Cassia angustifolia, having yellow flowers and long pods
- arachnivorous — Spider-eating.
- arachnoiditis — an inflammation of the arachnoid membrane
- arbitrariness — subject to individual will or judgment without restriction; contingent solely upon one's discretion: an arbitrary decision.
- archaeologist — a specialist in archaeology, the scientific study of prehistoric peoples and their cultures by analysis of their artifacts, inscriptions, monuments, etc.
- archaic smile — a conventional representation of the mouth characterized by slightly upturned corners of the lips, found especially on Greek sculpture produced prior to the 5th century b.c.
- archbishopric — the rank, office, or jurisdiction of an archbishop
- archduchesses — Plural form of archduchess.
- archeologists — archaeology.
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- archipelagoes — Plural form of archipelago.
- architectures — Plural form of architecture.
- arcticologist — a person who specializes in arcticology.
- arcus senilis — an opaque circle around the cornea of the eye, often seen in elderly people
- argentiferous — containing or bearing silver
- argilliferous — containing or yielding clay
- arias sanchez — Oscar. born 1940, Costa Rican statesman; president (1986–90, 2006–2010); Nobel peace prize 1987
- aristocracies — Plural form of aristocracy.
- aristocratism — the principles of aristocrats
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.