17-letter words containing t, h, a, l
- methyltransferase — any of a class of enzymes that catalyze the transfer of methyl groups from one molecule to another.
- minion of the law — a policeman.
- miss lonelyhearts — a novel (1933) by Nathanael West.
- mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
- modern pentathlon — an athletic contest consisting of five different events: horse riding with jumps, fencing with electric épée, freestyle swimming, pistol shooting, and cross-country running
- modulo arithmetic — modular arithmetic
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- mongolian hot pot — a stewlike dish of sliced meat, seafood, and vegetables cooked together in hot broth, often in a clay pot, and seasoned with a hot sauce.
- monochromatically — of or having one color.
- monolith catalyst — A monolith catalyst is a type of catalyst whose surface is flat.
- mont-saint-michel — a rocky islet near the coast of NW France, in an inlet of the Gulf of St. Malo: famous abbey and fortress.
- more than usually — You use more than usually to show that something shows even more of a particular quality than it normally does.
- mystical theology — the branch of theology dealing with mysticism and mystical experiences.
- nanotechnological — Of, pertaining to, or by means of nanotechnology.
- nathaniel currier — Nathaniel, 1813–88, U.S. lithographer. Compare Ives (def 4).
- national heritage — country's cultural legacy
- national seashore — an area of seacoast set aside and maintained by the U.S. government for purposes of recreation or wildlife study.
- nationalist china — China, Republic of.
- natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
- natural hat trick — three goals scored in succession by one player in one game or one period.
- natural logarithm — a logarithm having e as a base. Symbol: ln.
- nautical twilight — the period of time during which the sun is 12° below the horizon
- navigation lights — lights on an aircraft
- neath port talbot — a county borough in S Wales, created from part of West Glamorgan in 1996. Administrative centre: Port Talbot. Pop: 135 300 (2003 est). Area: 439 sq km (169 sq miles)
- negative theology — a theological approach or tradition in which the nature of God is thought to be unknowable and is only understood through negative statements. See also apophasis (def 2).
- neo-malthusianism — a view or doctrine advocating population control, especially by contraception.
- neo-scholasticism — a contemporary application of Scholasticism to modern problems and life.
- nephelometrically — By means of nephelometry.
- neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
- nightshade family — the plant family Solanaceae, characterized by herbaceous plants, trees, shrubs, and vines having alternate, simple or pinnate leaves, conspicuous flowers, and fruit in the form of a berry or capsule, and including belladonna, eggplant, nightshade, peppers of the genus Capsicum, petunia, potato, tobacco, and tomato.
- non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- nonaccomplishment — Something that does not achieve the intended goal.
- normal orthogonal — orthonormal.
- north lanarkshire — a council area of central Scotland: consists mainly of the NE part of the historical county of Lanarkshire; formerly (1974–96) part of Strathclyde Region: engineering and metalworking industries. Administrative centre: Motherwell. Pop: 321 820 (2003 est). Area: 1771 sq km (684 sq miles)
- north-wall hammer — a type of ice axe that has a hammer as part of its head
- nothing less than — You can use nothing less than to emphasize your next words, often indicating that something seems very surprising or important.
- nuclear chemistry — the branch of chemistry concerned with nuclear reactions
- nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on the barrelhead — upon being presented for sale; at the time of delivery
- on the half shell — served raw, with seasonings, on a half shell
- orthogonal matrix — a matrix that is the inverse of its transpose so that any two rows or any two columns are orthogonal vectors
- orthogonalization — (mathematics) The process of converting a set of functions or vectors into orthogonal ones.
- out at the elbows — the bend or joint of the human arm between upper arm and forearm.
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- oystershell scale — a scale insect, Lepidosaphes ulmi, having a scale shaped like the shell of an oyster, which infests various deciduous trees and shrubs.
- pair annihilation — Physics. annihilation (def 3a).
- palaeoethnobotany — the study of fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals