18-letter words containing c, h, l, a
- last chance saloon — a place frequented by unsavoury or contemptible people
- laugh out of court — to express mirth, pleasure, derision, or nervousness with an audible, vocal expulsion of air from the lungs that can range from a loud burst of sound to a series of quiet chuckles and is usually accompanied by characteristic facial and bodily movements.
- launching ceremony — a ceremony that celebrates the launch of a ship for the first time into the water
- leatherback turtle — a sea turtle, Dermochelys coriacea, having the shell embedded in a leathery skin, reaching a length of more than 7 feet (2.1 meter) and a weight of more than 1000 pounds (450 kg): the largest living sea turtle; an endangered species.
- leave in the lurch — a situation at the close of various games in which the loser scores nothing or is far behind the opponent.
- legislative branch — the branch of government having the power to make laws; the legislature.
- light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
- lighting cameraman — the person who designs and supervises the lighting of scenes to be filmed
- lincoln's birthday — February 12, a legal holiday in some states of the U.S., in honor of the birth of Abraham Lincoln.
- lipopolysaccharide — any of a class of polysaccharides to which lipids are attached.
- liqueur chocolates — chocolates containing liqueur
- lithostratigraphic — Of or pertaining to lithostratigraphy.
- logarithmic spiral — log r = aθ
- logical shift left — logical shift
- lonely hearts club — a club for people who are trying to find a lover or a friend
- 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.
- lower palaeolithic — the earliest of the three sections of the Palaeolithic, beginning about 3 million years ago and ending about 70 000 bc with the emergence of Neanderthal man
- magnetorheological — (physics) describing a substance whose rheological properties are modified by a magnetic field.
- malicious mischief — willful destruction of personal property motivated by ill will or resentment toward its owner or possessor.
- marine archaeology — the branch of archaeology that deals with the recovery of ancient objects found beneath the sea, as shipwrecks or remains from submerged islands, and with the techniques of underwater exploration, excavation, and retrieval.
- mathematical error — a mistake in a mathematical calculation, etc
- mathematical logic — symbolic logic.
- mathematical model — a representation of a system, process, etc, in mathematical terms
- matthias schleiden — Matthias Jakob [mah-tee-ahs yah-kawp] /mɑˈti ɑs ˈyɑ kɔp/ (Show IPA), 1804–81, German botanist.
- mechanical drawing — drawing, as of machinery, done with the aid of rulers, scales, compasses, etc.
- mechanical testing — Mechanical testing is the testing of a material to find out its mechanical properties, for example its yield strength or hardness.
- medical technician — a person, not a qualified doctor, who does practical work in a hospital
- mental health care — services devoted to the treatment of mental illnesses and the improvement of mental health in people with mental disorders or problems
- menthol cigarettes — cigarettes that are flavoured with menthol
- mergui archipelago — a group of over 200 islands in the Andaman Sea, off the Tenasserim coast of S Myanmar: mountainous and forested
- methacrylate resin — an acrylic resin formed by polymerizing the esters or amides of methacrylic acid.
- methylcyclohexanol — a colorless, aromatic, viscous liquid mixture, chiefly of the ortho and para forms of CH 3 C 6 H 1 0 OH, derived from cresol by hydrogenation: used chiefly as a solvent for rubber, cellulose, esters, and phenols.
- middle paleolithic — See under Paleolithic.
- moccasin telegraph — the transmission of rumour or secret information; the grapevine
- modular arithmetic — arithmetic in which numbers that are congruent modulo a given number are treated as the same. Compare congruence (def 2), modulo, modulus (def 2b).
- monte carlo method — a technique for numerically approximating the solution of a mathematical problem by studying the distribution of some random variable, often generated by a computer.
- mozambique channel — a channel in SE Africa, between Mozambique and Madagascar. 950 miles (1530 km) long; 250–550 miles (400–885 km) wide.
- mucopolysaccharide — (formerly) glycosaminoglycan.
- multimedia machine — machines that allow users to control and manipulate sound, video, text and graphics
- muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
- naberezhnye chelny — a port in the Tatar Autonomous Republic, in the Russian Federation in Asia,e of Kazan, on the Kama River.
- natural childbirth — childbirth involving little or no use of drugs or anesthesia and usually involving a program in which the mother is psychologically and physically prepared for the birth process.
- naval architecture — the science of designing ships and other waterborne craft.
- negative cash flow — the situation when income is less than payments
- neurophysiological — the branch of physiology dealing with the functions of the nervous system.
- neuropsychological — Of or pertaining to neuropsychology, the relation or combination of brain and mind.
- nonachlorobiphenyl — (organic compound) Either of three isomers of the polychlorinated biphenyl containing nine chlorine atoms.
- noninterchangeable — That cannot be interchanged with another.
- nonpharmacological — Not pharmacological.
- not to have a clue — to be completely baffled