17-letter words containing f, u, l, s
- 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.
- inclusive fitness — the fitness of an individual organism as measured in terms of the survival and reproductive success of its kin, each relative being valued according to the probability of shared genetic information, an offspring or sibling having a value of 50 percent and a cousin 25 percent.
- infinitive clause — a clause containing an infinitive as its main or only verb form, as to speak clearly in Try to speak clearly.
- instrument flying — the control and navigation of an aircraft by reference to its gauges, with no or only limited visual reference outside the cockpit.
- island of the sun — Sicily: the island where Helius kept his oxen.
- 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 salisbury — c1115–80, English prelate and scholar.
- knock oneself out — to make great efforts; exhaust oneself
- lady of the house — the female head of a household (usually preceded by the).
- lance of courtesy — a lance having a blunt head to prevent serious injury by a jouster to an opponent.
- language transfer — transfer (def 20).
- last-in first-out — stack
- league of nations — an international organization to promote world peace and cooperation that was created by the Treaty of Versailles (1919): dissolved April 1946.
- 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
- luminous efficacy — the quotient of the luminous flux of a radiation and its corresponding radiant flux
- magnesium sulfate — a white, water-soluble salt, MgSO 4 , used chiefly in medicine and in the processing of leather and textiles.
- make the dust fly — earth or other matter in fine, dry particles.
- manganese sulfate — a pink, water-soluble, usually tetrahydrate salt, MnSO 4 ⋅4H 2 O, used chiefly in fertilizers, paints, and varnishes.
- metallofullerenes — Plural form of metallofullerene.
- out of all reason — unreasonable
- out of this world — the earth or globe, considered as a planet.
- phlebotomus fever — sandfly fever.
- pincushion flower — scabious2 (def 1).
- plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
- plumbing fixtures — things such as pipes, sinks, toilets that are fixed in position in a building
- potassium sulfate — a crystalline, water-soluble solid, K 2 SO 4 , used chiefly in the manufacture of fertilizers, alums, and mineral water, and as a reagent in analytical chemistry.
- procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
- professional foul — In football, if a player commits a professional foul, they deliberately do something which is against the rules in order to prevent another player from scoring a goal.
- purple of cassius — a purple pigment precipitated as a sol by the interaction of gold chloride and a solution of stannic acid and stannous chloride: used chiefly in the manufacture of ruby glass, ceramic glazes, and enamels.
- pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
- qualified success — If you describe something as a qualified success, you mean that it is only partly successful.
- recursion formula — a formula for determining the next term of a sequence from one or more of the preceding terms.
- refuse a proposal — If an insurer refuses a proposal, it does not agree to underwrite a risk proposed by a potential client.
- refuse collection — the collection of rubbish and waste, usually in a rubbish or refuse truck, before final disposal
- russian wolfhound — borzoi.
- san andreas fault — an active strike-slip fault in W United States, extending from San Francisco to S California and forming the on-land portion of the western margin of the North American Plate.
- self-constituting — to compose; form: mortar constituted of lime and sand.
- self-introduction — the act of introducing or the state of being introduced.
- self-perpetuating — continuing oneself in office, rank, etc., beyond the normal limit.
- self-priming pump — A self-priming pump is a pump that will clear its passages of air and start pumping.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- self-renunciation — renunciation of one's own will, interests, etc.
- self-reproduction — the act or process of reproducing.
- self-rising flour — Self-rising flour is flour that makes cakes rise when they are cooked because it has chemicals added to it.
- separating funnel — a large funnel having a tap in its output tube, used to separate immiscible liquids
- sexual preference — Someone's sexual preference is the same as their sexual orientation.
- silk manufacturer — a person or business that is involved in the manufacture of silk thread and fabric