13-letter words that end in s
- kalambo falls — an archaeological site at the southeastern end of Lake Tanganyika, on the Zambia-Tanzania border, that has yielded one of the longest continuous cultural sequences in sub-Saharan Africa, beginning more than 100,000 years b.p. and characterized in the earliest levels by evidence of fire use and some simple wooden implements of Lower Paleolithic, or Acheulean, humans.
- kaleidoscopes — Plural form of kaleidoscope.
- katharometers — Plural form of katharometer.
- katzenjammers — Plural form of katzenjammer.
- kenyapithecus — a genus of fossil hominoids of middle Miocene age found in Kenya and having large molars, small incisors, and powerful chewing muscles.
- kepler's laws — any one of three laws governing planetary motion: each planet revolves in an ellipse, with the sun at one focus; the line connecting a planet to the sun sweeps out equal areas in equal periods of time (law of areas) or the square of the period of revolution of each planet is proportional to the cube of the semimajor axis of the planet's orbit (harmonic law)
- keratinocytes — Plural form of keratinocyte.
- keratomycosis — Fungal infection of the cornea.
- kick upstairs — to strike with the foot or feet: to kick the ball; to kick someone in the shins.
- kidney stones — an abnormal stone, or concretion, composed primarily of oxalates and phosphates, found in the kidney.
- kinaesthetics — Alternative spelling of kinesthetics.
- kindergartens — Plural form of kindergarten.
- king of kings — Christ; Jesus.
- kingsley amis — Kingsley, 1922–95, English novelist.
- kiss sb's ass — Saying that someone can kiss your ass is a very rude way of expressing anger or disagreement.
- kittenishness — The state or condition of being kittenish.
- klamath falls — a city in SW Oregon.
- kleptomaniacs — Plural form of kleptomaniac.
- klipspringers — Plural form of klipspringer.
- knee breeches — trousers worn by men in the past, which came down as far as their knees rather than their ankles
- know-nothings — an ignorant or totally uninformed person; ignoramus.
- knowledgeless — acquaintance with facts, truths, or principles, as from study or investigation; general erudition: knowledge of many things.
- kraft process — a process for making wood pulp by digesting wood chips in an alkaline liquor consisting chiefly of caustic soda together with sodium sulfate.
- kuril islands — a chain of 56 volcanic islands off the NE coast of Asia, extending for 1200 km (750 miles) from the S tip of the Kamchatka Peninsula to NE Hokkaido. Area: 14 990 sq km (6020 sq miles)
- laboriousness — requiring much work, exertion, or perseverance: a laborious undertaking.
- labyrinthitis — inflammation of the inner ear, or labyrinth, characterized by dizziness, nausea, and visual disturbances.
- lace-up shoes — shoes which are fastened with laces
- lactobacillus — any long, slender, rod-shaped, anaerobic bacterium of the genus Lactobacillus, that produces large amounts of lactic acid in the fermentation of carbohydrates, especially in milk.
- lactoproteins — Plural form of lactoprotein.
- lady mayoress — the wife of a lord mayor
- lamellaphones — Plural form of lamellaphone.
- laminectomies — Plural form of laminectomy.
- landgraviates — Plural form of landgraviate.
- lane markings — white lines on the road that mark lanes
- language arts — study of reading and writing
- laparoscopies — Plural form of laparoscopy.
- laryngoscopes — Plural form of laryngoscope.
- laryngotomies — Plural form of laryngotomy.
- laughableness — The state or quality of being laughable; ludicrousness.
- leading reins — straps or a harness and strap used to assist and control a child who is learning to walk
- least squares — a method of estimating values from a set of observations by minimizing the sum of the squares of the differences between the observations and the values to be found.
- leather goods — products made of animal skin
- lecherousness — The property of being lecherous.
- lecture notes — notes that are taken by someone attending a lecture
- legal process — court procedure
- legal redress — money that someone pays you because they have caused you harm or loss
- legionellosis — An infectious disease caused by Legionella bacteria, taking one of two distinct forms: Legionnaires' disease and Pontiac fever.
- leiomyomatous — a benign tumor composed of nonstriated muscular tissue.
- leishmaniasis — any infection caused by a protozoan of the genus Leishmania.
- leishmaniosis — Alt form leishmaniasis.