18-letter words containing l, a, s
- lincoln's birthday — February 12, a legal holiday in some states of the U.S., in honor of the birth of Abraham Lincoln.
- linear perspective — a mathematical system for representing three-dimensional objects and space on a two-dimensional surface by means of intersecting lines that are drawn vertically and horizontally and that radiate from one point (one-point perspective) two points (two-point perspective) or several points on a horizon line as perceived by a viewer imagined in an arbitrarily fixed position.
- lipopolysaccharide — any of a class of polysaccharides to which lipids are attached.
- liqueur chocolates — chocolates containing liqueur
- literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
- literal-mindedness — the quality or state of tending to take words in their literal sense
- literary criticism — study and review of literature
- lithostratigraphic — Of or pertaining to lithostratigraphy.
- little spotted cat — a small New World tiger cat, Felis tigrinus, ranging from Costa Rica to northern Argentina.
- little st. bernard — Great, a mountain pass between SW Switzerland and NW Italy, in the Pennine Alps: Napoleon led his army through it in 1800; location of a hospice. 8108 feet (2470 meters) high.
- local examinations — (in the UK) any of various examinations, such as the GCE, set by university boards and conducted in local centres, schools, etc
- locally finite set — a collection of sets in a topological space in which each point of the space has a neighborhood that intersects a finite number of sets of the collection.
- logarithmic spiral — log r = aθ
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.
- logical positivism — a philosophical movement that stresses the function of philosophy as a method of criticizing and analyzing science and that rejects all transcendental metaphysics, statements of fact being held to be meaningful only if they have verifiable consequences in experience and in statements of logic, mathematics, or philosophy itself, and with such statements of fact deriving their validity from the rules of language.
- logical positivist — an exponent or follower of logical positivism
- logical shift left — logical shift
- logically possible — capable of being described without self-contradiction
- lonely hearts club — a club for people who are trying to find a lover or a friend
- long-distance call — phone call: not local area
- long-stay car park — a car park (eg at an airport) where cars can be left for a long time
- looking-glass self — the self-image an individual forms by imagining what others think of his or her behavior and appearance.
- loosestrife family — the plant family Lythraceae, characterized by herbaceous plants, shrubs, and trees having usually opposite or whorled, simple leaves, clusters of flowers, and fruit in the form of a capsule, and including the crape myrtle, loosestrifes of the genus Lythrum, and the henna shrub.
- lose one's marbles — If you say that someone has lost their marbles, you mean that their ideas or behaviour are very strange, as if they have become insane.
- louisiana purchase — a treaty signed with France in 1803 by which the U.S. purchased for $15,000,000 the land extending from the Mississippi River to the Rocky Mountains and from Canada to the Gulf of Mexico.
- low-start mortgage — a mortgage in which interest only is repaid for a fixed period at the outset, to make it more affordable
- lowell observatory — the astronomical observatory, situated in Flagstaff, Arizona, at which Pluto was discovered in 1930.
- lubber grasshopper — plains grasshopper.
- luminous emittance — luminous flux emitted per unit area.
- maclaurin's series — an infinite sum giving the value of a function f(x) in terms of the derivatives of the function evaluated at zero: f(x) = f(0) + (f′(0)x)/1! + (f″(0)x2)/2! + …
- magnesium silicate — a white powder, 3MgSiO 3 ⋅5H 2 O, with variable hydration, insoluble in water or alcohol, used as a rubber filler, a bleaching agent, an odor absorbent, and in the manufacture of paints and resins.
- magnetocrystalline — (physics) Describing the interaction between the magnetization and the crystal structure of a material.
- maison-de-molieres — Comédie Française.
- make a meal of sth — If you think someone is taking more time and energy to do something than is necessary, you can say that they are making a meal of it.
- maksutov telescope — a reflecting telescope in which coma and spherical aberration are reduced to a minimum by a combination of a spherical mirror and a meniscus lens placed inside the radius of curvature of the mirror.
- malicious mischief — willful destruction of personal property motivated by ill will or resentment toward its owner or possessor.
- malicious wounding — the intentional violent wounding or injuring of someone
- malpighian tubules — one of a group of long, slender excretory tubules at the anterior end of the hindgut in insects and other terrestrial arthropods.
- margaret of valois — ("Queen Margot") 1533–1615, 1st wife of Henry IV of France: queen of Navarre; patron of science and literature (daughter of Henry II of France and Catherine de' Medici).
- marsilius of padua — c1280–1343? Italian scholar and political theorist.
- materials handling — the loading, unloading, and movement of goods, as within a factory or warehouse, especially by the aid of mechanical devices.
- maternity hospital — birthing facility
- mato grosso do sul — a state of W central Brazil: formed in 1979 from part of Mato Grosso state. Capital: Campo Grande. Pop: 2 140 624 (2002). Area: 350 548 sq km (135 318 sq miles)
- matthias schleiden — Matthias Jakob [mah-tee-ahs yah-kawp] /mɑˈti ɑs ˈyɑ kɔp/ (Show IPA), 1804–81, German botanist.
- mechanical testing — Mechanical testing is the testing of a material to find out its mechanical properties, for example its yield strength or hardness.
- median lethal dose — the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD 5 0.
- medical profession — the body of people who work as doctors of medicine
- melville peninsula — a peninsula in N Canada, SE of the Gulf of Boothia. 250 miles (405 km) long.
- mendel's first law — the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring acquire one factor from each parent.
- menendez de aviles — Pedro [pe-th raw] /ˈpɛ ðrɔ/ (Show IPA), 1519–74, Spanish admiral and colonizer: founder of St. Augustine, Florida 1565.