20-letter words containing a, n, l, o

southern oscillation — a low-latitude fluctuation of atmospheric pressure closely linked with El Niño events, specifically the periods of El Niño warming and La Niña cooling.
spanish oyster plant — a composite plant, Scolymus hispanicus, of southern Europe, having spiny, thistlelike leaf margins, small yellow flowers, and an edible root.
spatial technologies — (company) Distributors of the ACIS solid modelling engine.
special relationship — the exceptionally close political, diplomatic, cultural and historical relations between the United States and the United Kingdom
spherical aberration — variation in focal length of a lens or mirror from center to edge, due to its spherical shape.
spherical coordinate — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
spotted crane's-bill — the American wild geranium, Geranium maculatum.
st. george's channel — a channel between Wales and Ireland, connecting the Irish Sea and the Atlantic. 100 miles (160 km) long; 50–90 miles (81–145 km) wide.
stained glass window — a window made of coloured glass, often showing religious pictures and usually seen in churches
state enrolled nurse — a nurse with training and examinations enabling him or her to perform many nursing services
stefan-boltzmann law — the law stating that the total energy radiated from a blackbody is proportional to the fourth power of its absolute temperature.
strong nuclear force — an interaction between elementary particles responsible for the forces between nucleons in the nucleus. It operates at distances less than about 10–15 metres, and is about a hundred times more powerful than the electromagnetic interaction
subscription library — a commercial lending library
surveillance society — a society where surveillance technology is widely used to monitor people's everyday activities
system international — Système International d'Unités
systemic circulation — the circulatory system in general.
tactical air command — a U.S. Air Force command supplying direct air support to U.S. Army ground combat units.
take to the cleaners — a person who cleans, especially one whose regular occupation is cleaning offices, buildings, equipment, etc.
take up a collection — to get into one's hold or possession by voluntary action: to take a cigarette out of a box; to take a pen and begin to write.
tangent galvanometer — a type of galvanometer having a vertical coil of wire with a horizontal magnetic needle at its centre. The current to be measured is passed through the coil and produces a proportional magnetic field which deflects the needle
technology agreement — a framework designed by trade unions for negotiating changes in employment caused by the introduction of new technology
teletype corporation — (company) The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
television broadcast — sth shown on tv
television programme — a programme broadcast on television
tetrahydrocannabinol — a compound, C 21 H 30 O 2 , that is the physiologically active component in cannabis preparations (marijuana, hashish, etc.) derived from the Indian hemp plant or produced synthetically. Abbreviation: THC.
the last word in sth — If you say that something is the last word in luxury, comfort, or some other quality, you are emphasizing that it has a great deal of this quality.
the legal profession — the profession of law
the whole nine yards — everything that is required; the whole thing
there is no call for — If you say that there is no call for someone to behave in a particular way, you are criticizing their behaviour, usually because you think it is rude.
thermal conductivity — the amount of heat per unit time per unit area that can be conducted through a plate of unit thickness of a given material, the faces of the plate differing by one unit of temperature.
thomas of erceldoune — Thomas of, Thomas of Erceldoune.
thread language zero — (language) (TL0) The instruction set of the TAM (Threaded Abstract Machine), used to implement Id.
three-dimensionality — having, or seeming to have, the dimension of depth as well as width and height.
three-quarter nelson — a hold in which a wrestler, from a kneeling position behind a prone opponent, applies a half nelson with one arm, passes the other arm under the opponent's body on the near side, and locks the arms at the fingers or wrist on the back of the opponent's neck.
to be walking on air — If you say that you are walking on air or floating on air, you mean that you feel extremely happy about something.
to blow hot and cold — If someone blows hot and cold, they keep changing their attitude towards something, sometimes being very enthusiastic and at other times expressing no interest at all.
to burst into flames — If something bursts into flames or bursts into flame, it suddenly starts burning strongly.
to clean up your act — If someone who has been behaving badly cleans up their act, they start to behave in a more acceptable or responsible way.
to fall on deaf ears — If a request falls on deaf ears or if the person to whom the request is made turns a deaf ear to it, they take no notice of it.
to fall on your feet — If you say that someone always falls or lands on their feet, you mean that they are always successful or lucky, although they do not seem to achieve this by their own efforts.
to hit the headlines — Someone or something that hits the headlines or grabs the headlines gets a lot of publicity from the media.
to keep your balance — If you keep your balance, for example, when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
to land on your feet — If you say that someone always lands on their feet, you mean that they are always successful or lucky, although they do not seem to achieve this by their own efforts.
to live and let live — You say live and let live as a way of saying that you should let other people behave in the way that they want to and not criticize them for behaving differently from you.
to look high and low — If you say that you looked high and low for something, you are emphasizing that you looked for it in every place that you could think of.
townsend's solitaire — a brownish, slender-billed songbird, Myadestes townsendi, of western North America.
traditional marriage — Anthropology. the primary established form of marriage recognized in a given country or religious or social group at a given time: In that culture, traditional marriage requires the families of the future bride and groom to engage in ritual visits and exchange gifts.
traditional medicine — systems of medicine developed before the era of modern medicine, based on cultural beliefs and practices handed down from generation to generation
trailing vortex drag — drag arising from vortices that occur behind a body moving through a gas or liquid
transcendental logic — (in Kantian epistemology) the study of the mind with reference to its perceptions of external objects and to the objective truth of such perceptions.

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