13-letter words containing a, l, u, n, i
- running belay — the clipping of the rope through a karabiner attached to a sling, piton, nut, etc, secured to the mountain: used by a leading climber of a team to reduce the length of a possible fall
- running total — a running total is a total which changes because numbers keep being added to it as something progresses
- rural science — the study and theory of agriculture, biology, ecology, and associated fields
- rusine antler — an antler resembling that of the sambar.
- russian olive — oleaster.
- russian salad — a salad of cold diced cooked vegetables mixed with Russian dressing
- saint austell — a town in SW England, in S Cornwall on St Austell Bay (an inlet of the English Channel): centre for the now-declining china clay industry; the Eden Project, a rainforest environment in the world's largest greenhouse, is nearby; administratively part of St Austell with Fowey 1968-74. Pop (with Fowey): 22 658 (2001)
- saint columba — Padraic [paw-drik] /ˈpɔ drɪk/ (Show IPA), 1881–1972, Irish poet and dramatist, in the U.S. from 1914.
- saint laurent — Louis Stephen [lwee ste-fen] /lwi stɛˈfɛn/ (Show IPA), 1882–1973, prime minister of Canada 1948–57.
- saint-laurent — Louis Stephen [lwee ste-fen] /lwi stɛˈfɛn/ (Show IPA), 1882–1973, prime minister of Canada 1948–57.
- salviniaceous — relating to the genus Salviniaceae
- san juan hill — a hill in SE Cuba, near Santiago de Cuba: captured by U.S. forces in battle during the Spanish-American War in 1898.
- san luis peak — a mountain in SW Colorado, in the San Juan Mountains. 14,014 feet (4271 meters).
- sansculottism — (in the French Revolution) a revolutionary of the poorer class: originally a term of contempt applied by the aristocrats but later adopted as a popular name by the revolutionaries.
- saturnalianly — in a saturnalian or dissolute manner
- saving clause — a clause which denotes a reservation or exception
- scapulimantic — relating to scapulimancy
- selenous acid — a colorless, transparent, crystalline powder, H2SeO3, soluble in water and used as a reagent
- self-assuming — taking too much for granted; presumptuous.
- semimenstrual — (esp of tides) occurring twice monthly
- seminal fluid — the fluid component of semen, excluding the sperm.
- sensorineural — related to or affecting a sensory nerve or a sensory mechanism together with its neural circuitry.
- sequentiality — characterized by regular sequence of parts.
- serial number — a number, usually one of a series, assigned for identification: the serial number of an automobile engine.
- serum albumin — Biochemistry. the principal protein of blood plasma, important in osmotic regulation of the blood and transport of metabolites.
- sexualization — to render sexual; endow with sexual characteristics.
- sign language — Also called sign. any of several visual-gestural systems of communication, especially employing manual gestures, as used among deaf people.
- single status — a national agreement that aims to avoid unfairness in pay and reward arrangements for employees and to ensure harmonisation of conditions in comparable posts
- single-valued — (of a function) having the property that each element in the domain has corresponding to it exactly one element in the range.
- singular noun — A singular noun is a noun such as 'standstill' or 'vicinity' that does not have a plural form and always has a determiner such as 'a' or 'the' in front of it.
- sinistrocular — favoring the left eye, rather than the right, by habit or for effective vision (opposed to dextrocular).
- sinumbra lamp — an unshaded sperm-oil lamp consisting of a translucent glass globe supported on a pedestal: a form of astral lamp.
- situationally — manner of being situated; location or position with reference to environment: The situation of the house allowed for a beautiful view.
- social column — a column in a newspaper or magazine that details the activities of members of fashionable society
- solidungulate — having a single, undivided hoof on each foot, as a horse.
- sound library — a collection of sounds stored on file (for example on CDs, DVDs, or as digital audio files)
- sounding lead — a line weighted with a lead or plummet (sounding lead) and bearing marks to show the length paid out, used for sounding, as at sea.
- sparking plug — spark plug (def 1).
- sphagnicolous — growing in moss
- spinal column — the series of vertebrae in a vertebrate animal forming the axis of the skeleton and protecting the spinal cord; spine; backbone.
- spiral nebula — (formerly) a spiral galaxy.
- squanderingly — in a squandering manner
- strangulation — Pathology, Surgery. to compress or constrict (a duct, intestine, vessel, etc.) so as to prevent circulation or suppress function.
- sub-librarian — an assistant or junior librarian
- suballocation — an allocation made from a previous allocation
- subdelegation — a group or body of delegates: Our club sent a delegation to the rally.
- sublieutenant — British. a navy officer ranking next below a lieutenant.
- subpopulation — the total number of persons inhabiting a country, city, or any district or area.
- subprime loan — A subprime loan is a loan with a higher interest rate, to borrowers who are a high credit risk.
- substantially — of ample or considerable amount, quantity, size, etc.: a substantial sum of money.