15-letter words containing a, e, r, i, l, o
- simple fraction — a ratio of two integers.
- simple majority — less than half of the total votes cast but more than the minimum required to win, as when there are more than two candidates or choices.
- singapore sling — a cocktail of gin, cherry brandy, sugar, and water.
- sinistrodextral — moving or extending from the left to the right.
- sink a borehole — To sink a borehole means to drill a deep hole in the ground.
- sinoatrial node — a small mass of tissue in the right atrium functioning as pacemaker of the heart by giving rise to the electric impulses that initiate heart contractions.
- slavonian grebe — a N Eurasian or N American grebe with reddish underside and a black and gold crest; Podiceps auritus
- sled cultivator — go-devil (def 5).
- smoking-related — (of a disease, illness, etc) caused by smoking tobacco, etc
- social democrat — a person who advocates a gradual transition to socialism or a modified form of socialism by and under democratic political processes.
- social heritage — the entire inherited pattern of cultural activity present in a society.
- social register — a directory or list of people prominent in the fashionable society of a given area
- social security — (usually initial capital letters) a program of old-age, unemployment, health, disability, and survivors insurance maintained by the U.S. federal government through compulsory payments by specific employer and employee groups.
- social services — organized welfare efforts carried on under professional auspices by trained personnel.
- sodium chlorate — a colorless, water-soluble solid, NaClO 3 , cool and salty to the taste, used chiefly in the manufacture of explosives and matches, as a textile mordant, and as an oxidizing and bleaching agent.
- soldier's heart — cardiac neurosis.
- soldier's medal — a medal awarded to any member of the Army of the United States, or of any military organization serving with it, who distinguishes himself or herself by heroism not involving conflict with an enemy.
- somerset island — an island in the Arctic Ocean in Nunavut, Canada, NW of Baffin Island. 9594 sq. mi. (24,848 sq. km).
- source material — original, authoritative, or basic materials utilized in research, as diaries or manuscripts.
- spanish trefoil — alfalfa.
- spectrochemical — of, relating to, or utilizing the techniques of spectrochemistry.
- spermatoblastic — relating to a spermatoblast
- spiral notebook — a notebook held together by a coil of wire passed through small holes punched at the back edge of the covers and individual pages
- stalactite work — (in Islamic architecture) intricate decorative corbeling in the form of brackets, squinches, and portions of pointed vaults.
- starfish flower — carrion flower (def 2).
- stereologically — by way of stereology or in a stereological manner
- stereotypically — in a stereotypical manner
- streamline flow — the flow of a fluid past an object such that the velocity at any fixed point in the fluid is constant or varies in a regular manner.
- strephosymbolia — a condition of perceiving objects as their mirror image and, specifically, having difficulty in distinguishing letters in words
- streptobacillus — any of various bacilli that form in chains.
- subperiosteally — the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
- subprofessional — being below professional standards: subprofessional health care.
- sulphinpyrazone — a uricosuric drug with molecular formula C23H20N2O3S, used in the treatment of chronic gout
- summer holidays — the time when children do not go to school in the summer
- superexaltation — extreme or supreme exaltation; the act of superexalting; the process or condition of being superexalted
- superior planet — any of the five planets whose orbits are outside the orbit of the earth, namely, the planets Mars, Jupiter, Saturn, Uranus, and Neptune.
- survival course — a course that teaches people how to survive in the wild and in other dangerous environments
- symbol retailer — any member of a voluntary group of independent retailers, often using a common name or symbol, formed to obtain better prices from wholesalers or manufacturers in competition with supermarket chains
- taylor's series — an infinite sum giving the value of a function f(z) in the neighbourhood of a point a in terms of the derivatives of the function evaluated at a. Under certain conditions, the series has the form f(z) = f(a) + [f′(a)(z – a)]/1! + [f″(a)(z – a)2]/2! + …
- tensor analysis — the branch of mathematics dealing with the calculus of tensors, especially the study of properties that are unaffected by a change of coordinate system.
- tentaculiferous — having tentacles
- tertiary colour — a colour formed by mixing two secondary colours
- tetrafunctional — pertaining to molecules or groups that can bond at four sites.
- the anglo-irish — the inhabitants of Ireland of English birth or descent
- the cordilleras — the complex of mountain ranges on the W side of the Americas, extending from Alaska to Cape Horn and including the Andes and the Rocky Mountains
- the daily round — the usual activities of one's day
- thioallyl ether — allyl sulfide.
- thiocarbanilide — a gray powder, C 13 H 12 N 2 S, used as an intermediate in dyes and as an accelerator in vulcanization.
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- time immemorial — Also called time out of mind. time in the distant past beyond memory or record: Those carvings have been there from time immemorial.