11-letter words containing i, r, t, s
- isogeotherm — an imaginary line connecting all points within the earth having the same mean temperature.
- isogradient — a line on a weather map or chart connecting points having the same horizontal gradient of a meteorological quantity, as temperature, pressure, or the like.
- isometrical — Dated form of isometric.
- isometropia — equality of refraction in the two eyes of an individual.
- isorhythmic — a structural feature characteristic of the Ars Nova motet, consisting of a single rhythmic phrase pattern repeated, usually in the tenor, throughout the composition.
- isospectral — (mathematics) Having the same spectrum.
- israelitish — of or relating to the Israelites; Hebrew.
- issacharite — a member of the tribe of Issachar.
- iteroparous — (of a plant) producing flowers and fruit more than once (usually many times) before dying
- itineraries — Plural form of itinerary.
- ivory coast — a republic in W Africa: formerly part of French West Africa; gained independence 1960. 127,520 sq. mi. (330,275 sq. km). Capital: Abidjan.
- jackrabbits — Plural form of jackrabbit.
- janitorship — the office of janitor
- jargonistic — the language, especially the vocabulary, peculiar to a particular trade, profession, or group: medical jargon.
- jersey city — a seaport in NE New Jersey, opposite New York City.
- jesuit ware — Chinese porcelain of the early 18th century, decorated with Christian motifs, usually in black and gold on a white background.
- jiggermasts — Plural form of jiggermast.
- jitteriness — extremely tense and nervous; jumpy: He's very jittery about the medical checkup.
- jointresses — Plural form of jointress.
- journalists — Plural form of journalist.
- judicatures — Plural form of judicature.
- keratinised — Simple past tense and past participle of keratinise.
- keratolysis — the loosening or shedding of the horny layer of the epidermis.
- kernicterus — (medicine) Damage to the brain centres of infants caused by increased levels of unconjugated-indirect bilirubin which is free (not bound to albumin).
- ketosteroid — any of a group of steroids containing a ketone group.
- keyboardist — the row or set of keys on a piano, organ, or the like.
- kickstarted — Simple past tense and past participle of kickstart.
- kinesiatric — of or relating to kinesiatrics
- kinesimeter — An instrument for the quantitative measurement of movements.
- kirby-smith — Edmund, 1824–93, Confederate general in the American Civil War.
- kitesurfing — The sport or pastime of riding on a modified surfboard while holding on to a specially designed kite, using the wind for propulsion.
- koeksisters — Plural form of koeksister.
- kristiansen — Ingrid. born 1956, Norwegian long-distance runner: world 10 000 metres record holder (1986–93)
- kulturkreis — formerly, a complex of related cultural traits assumed to diffuse or radiate outward as a unit in concentric waves or circles.
- kurdaitchas — Plural form of kurdaitcha.
- lacerations — Plural form of laceration.
- lacrimators — Plural form of lacrimator.
- lactiferous — producing or secreting milk: lactiferous glands.
- lancastrian — of or relating to the royal family of Lancaster.
- landsteiner — Karl [kahrl;; German kahrl] /kɑrl;; German kɑrl/ (Show IPA), 1868–1943, Austrian pathologist in the U.S.: Nobel Prize 1930.
- lanternfish — any of several small, deep-sea fishes of the family Myctophidae, having rows of luminous organs along each side, certain species of which migrate to the surface at night.
- laser light — light which is generated by a laser
- laser sight — a device on a firearm that uses a laser to pinpoint impact.
- latchstring — a string passed through a hole in a door, for raising the latch from the outside.
- lateralised — Simple past tense and past participle of lateralise.
- lateritious — of the color of brick; brick-red.
- latin cross — an upright or vertical bar crossed near the top by a shorter horizontal bar.
- latirostral — (of a bird) having a broad beak
- laurustinus — a southern European evergreen shrub, Viburnum tinus, of the honeysuckle family, having large clusters of white or pinkish flowers.
- leatherfish — a filefish.