13-letter words containing a, r, c, t
- ladder stitch — an embroidery stitch in which crossbars at equal distances are produced between two solid ridges of raised work.
- lake district — a mountainous region in NW England containing many lakes: tourist center.
- lake victoria — the ancient Roman goddess of victory, identified with the Greek goddess Nike.
- land contract — a contract for the purchase and sale of land.
- landing craft — any of various flat-bottomed vessels designed to move troops and equipment close to shore.
- lantern clock — an English bracket clock of the late 16th and 17th centuries, having a brass case with corner columns supporting pierced crestings on the sides and front.
- laparoscopist — One who carries out laparoscopy.
- laryngectomee — someone who has had a laryngectomy
- lateral canal — a canal running parallel to a stream that is inconvenient or impossible to navigate.
- lateral chain — an open chain of atoms attached to an atom of a larger chain, or to a ring.
- latin america — the part of the American continents south of the United States in which Spanish, Portuguese, or French is officially spoken.
- laughter club — a group of people who meet regularly to take part in communal laughing for therapeutic effect
- lead chromate — a yellow crystalline compound, PbCrO 4 , toxic, insoluble in water: used as an industrial paint pigment.
- leatherjacket — Also called leather jack. any of several carangid fishes having narrow, linear scales embedded in the skin at various angles, especially Oligoplites saurus, found in tropical American waters.
- lethal factor — a gene that under certain conditions causes the death of an organism.
- lethargically — of, relating to, or affected with lethargy; drowsy; sluggish; apathetic.
- letterspacing — the amount of space between each letter in a word, or the adjustment of this amount of space
- lipogrammatic — of or relating to a lipogram
- literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
- literacy test — an examination to determine whether a person meets the literacy requirements for voting, serving in the armed forces, etc.; a test of one's ability to read and write.
- liver extract — an extract of mammalian liver, especially hog or beef, for treating pernicious anemia.
- logarithmancy — Divination using logarithms.
- logical truth — the property of being logically tautologous
- logogrammatic — Of or pertaining to logograms; logographic.
- lord advocate — (in Scotland) the chief law officer of the Crown who acts as public prosecutor and is in charge of the administration of criminal justice
- lose track of — to fail to follow the passage, course, or progress of
- lucifer match — friction match.
- lucrativeness — profitable; moneymaking; remunerative: a lucrative business.
- lucretia mott — John Raleigh, 1865–1955, U.S. religious leader: Nobel Peace Prize 1946.
- lumber jacket — a short, straight, wool plaid jacket or coat, for informal wear, usually belted and having patch pockets.
- lumberjackets — Plural form of lumberjacket.
- lunar caustic — silver nitrate, AgNO 3 , especially in a sticklike mold, used to cauterize tissues.
- lycanthropous — Lycanthropic.
- macro-segment — a stretch of speech preceded and followed but not interrupted by a pause.
- macroclimates — Plural form of macroclimate.
- macroclimatic — Relating to macroclimate.
- macrolecithal — megalecithal.
- macromutation — a mutation that has a profound effect on the resulting organism, as a change in a regulatory gene that controls the expression of many structural genes.
- macronucleate — having a macronucleus.
- macronutrient — Nutrition. any of the nutritional components of the diet that are required in relatively large amounts: protein, carbohydrate, fat, and the macrominerals.
- macroparasite — (biology) Any parasite that is visible to the naked eye.
- macroplankton — planktonic organisms of about 1 mm in length.
- magic lantern — a device having an enclosed lamp and a lenslike opening, formerly used for projecting and magnifying images mounted on slides or films.
- magistratical — Of, pertaining to, or proceeding from, a magistrate; having the authority of a magistrate.
- magnetic core — Computers. core1 (def 12a).
- magnetic drum — a cylinder coated with magnetic material, on which data and programs can be stored.
- magnetic star — a star having a strong magnetic field.
- magnetic wire — a fine wire made from a magnetizable metal and used for wire recording.
- magnetometric — Pertaining to, or employed in, the measurement of magnetic forces; obtained by means of a magnetometer; as, 'magnetometric' instruments; 'magnetometric' measurements.
- malabar coast — a region along the entire SW coast of India, extending from the Arabian Sea inland to the Western Ghats.