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17-letter words containing l, f, r

  • hydrofluoric acid — a colorless, fuming, corrosive liquid, HF, an aqueous solution of hydrogen fluoride, used chiefly for etching glass.
  • hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
  • hydrogen fluoride — a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
  • hyperinflationary — (economics) Having very high levels of inflation.
  • immunofluorescent — Of, pertaining to, or using immunofluorescence.
  • impossible figure — a picture of an object that at first sight looks three-dimensional but cannot be a two-dimensional projection of a real three-dimensional object, for example a picture of a staircase that re-enters itself while appearing to ascend continuously
  • in double figures — An amount or number that is in single figures is between zero and nine. An amount or number that is in double figures is between ten and ninety-nine. You can also say, for example, that an amount or number is in three figures when it is between one hundred and nine hundred and ninety-nine.
  • in the front line — Someone who is in the front line has to play a very important part in defending or achieving something.
  • incomplete flower — a flower without one or more of the normal parts, as carpels, sepals, petals, pistils, or stamens.
  • inertial platform — self-contained navigational devices used in inertial guidance, along with their mounting.
  • infinite integral — improper integral (def 1).
  • influence peddler — a person who arranges to obtain favors, as government contracts, from high officials on behalf of others for a fee.
  • infralapsarianism — the doctrine, held by Augustinians and by many Calvinists, that God planned the Creation, permitted the Fall, elected a chosen number, planned their redemption, and suffered the remainder to be eternally punished (opposed to supralapsarianism).
  • instrument flying — the control and navigation of an aircraft by reference to its gauges, with no or only limited visual reference outside the cockpit.
  • integral function — an entire function.
  • interconfessional — common to or occurring between churches having different confessions.
  • internal conflict — psychological struggle within the mind of a literary or dramatic character, the resolution of which creates the plot's suspense: Hamlet's inaction is caused by internal conflict.
  • interprofessional — following an occupation as a means of livelihood or for gain: a professional builder.
  • intraspecifically — Between individuals of the same species.
  • it's your funeral — If someone says to you 'It's your funeral', they think your decision or your actions will have bad consequences for you, but they are unwilling to interfere.
  • john of lancaster — Duke of Bedford, 1389–1435, Bedford, John of Lancaster, Duke of.
  • john of salisbury — c1115–80, English prelate and scholar.
  • julian of norwich — ?1342–?1413, English mystic and anchoress: best known for the Revelations of Divine Love describing her visions
  • juvenile offender — a child or young person who has been found guilty of some offence, act of vandalism, or antisocial behaviour before a juvenile court
  • kolar gold fields — a city in S India, in SE Karnataka: a major gold-mining centre since 1881. Pop: 176 000 (2005 est)
  • lance of courtesy — a lance having a blunt head to prevent serious injury by a jouster to an opponent.
  • language transfer — transfer (def 20).
  • laplace transform — a map of a function, as a signal, defined especially for positive real values, as time greater than zero, into another domain where the function is represented as a sum of exponentials.
  • last-in first-out — stack
  • law of reflection — the principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is equal to the angle of incidence, and the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
  • law of refraction — the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray, refracted ray, and normal to the surface at the point of incidence all lie in the same plane.
  • law of trichotomy — the property that for natural numbers a and b , either a is less than b , a equals b , or a is greater than b .
  • leg before wicket — a manner of dismissal on the grounds that a batsman has been struck on the leg by a bowled ball that otherwise would have hit the wicket
  • letter of comfort — comfort letter.
  • letter of request — a letter sent from a court to a foreign court requesting judicial assistance
  • letters of marque — a former government document authorizing an individual to make reprisals on the subjects of an enemy nation, specif. to arm a ship and capture enemy merchant ships and cargo
  • liberty of speech — freedom of speech.
  • lie in wait (for) — to wait so as to catch after planning an ambush or trap (for)
  • life and/or death — If you say that something is a matter of life and death, you are emphasizing that it is extremely important, often because someone may die or suffer great harm if people do not act immediately.
  • life imprisonment — long-term prison sentence
  • life of the party — most lively, outgoing person
  • lifelong learning — the provision or use of both formal and informal learning opportunities throughout people's lives in order to foster the continuous development and improvement of the knowledge and skills needed for employment and personal fulfilment
  • line of scrimmage — an imaginary line parallel to the goal lines that passes from one sideline to the other through the point of the football closest to the goal line of each team.
  • litigation friend — a person acting on behalf of an infant or other person under legal disability
  • little fork river — a river in N Minnesota, flowing N to the Rainy River on the Canadian border. 132 miles (212 km) long.
  • live free or die! — 1. The state motto of New Hampshire, which appears on that state's automobile licence plates. 2. A slogan associated with Unix in the romantic days when Unix aficionados saw themselves as a tiny, beleaguered underground tilting against the windmills of industry. The "free" referred specifically to freedom from the fascist design philosophies and crufty misfeatures common on commercial operating systems. Armando Stettner, one of the early Unix developers, used to give out fake licence plates bearing this motto under a large Unix, all in New Hampshire colours of green and white. These are now valued collector's items.
  • loose-leaf binder — a hard cover with metal rings inside which is used to hold loose pieces of paper
  • lord of the flies — a novel (1954) by William Golding.
  • low-hanging fruit — the fruit that grows low on a tree and is therefore easy to reach
  • lower forty-eight — the forty-eight conterminous states of the United States
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