17-letter words containing f, e, r, t, i
- image intensifier — any of various devices for amplifying the intensity of an optical image, sometimes used in conjunction with an image converter
- immunofluorescent — Of, pertaining to, or using immunofluorescence.
- impersonification — (archaic) the act of impersonating; impersonation.
- improper fraction — a fraction having the numerator greater than the denominator.
- in recognition of — If something is done in recognition of someone's achievements, it is done as a way of showing official appreciation of them.
- in the front line — Someone who is in the front line has to play a very important part in defending or achieving something.
- in the market for — an open place or a covered building where buyers and sellers convene for the sale of goods; a marketplace: a farmers' market.
- in the process of — If you are in the process of doing something, you have started to do it and are still doing it.
- incomplete flower — a flower without one or more of the normal parts, as carpels, sepals, petals, pistils, or stamens.
- indefinite number — a variable or unspecified number.
- induction furnace — a type of electric furnace used for melting a charge of scrap by the heat produced by its own electrical resistance.
- inertial platform — self-contained navigational devices used in inertial guidance, along with their mounting.
- infinite integral — improper integral (def 1).
- infinitive marker — a word or affix occurring with the verb stem in the infinitive, such as to in to make
- 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.
- intensive farming — battery rearing of animals
- interconfessional — common to or occurring between churches having different confessions.
- interfenestration — a space between two windows.
- interference drag — the drag on an aircraft caused by the interaction of two aerodynamic bodies.
- interim financing — temporary financing
- 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.
- irons in the fire — If someone has a lot of irons in the fire, they are involved in several different activities or have several different plans.
- 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.
- judgment of paris — the decision by Paris to award Aphrodite the golden apple of discord competed for by Aphrodite, Athena, and Hera.
- 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.
- 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
- 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
- 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.
- lord of the flies — a novel (1954) by William Golding.
- lower forty-eight — the forty-eight conterminous states of the United States
- magnetizing force — that part of the magnetic induction that is determined at any point in space by the current density and displacement current at that point independently of the magnetic or other physical properties of the surrounding medium. Symbol: H.
- man's best friend — a dog, especially as a pet.
- mare fecunditatis — (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
- master of science — a master's degree given usually in a specific branch of the natural sciences, mathematics, or technology.
- maternity benefit — government allowance
- matter of opinion — a point open to question; a debatable statement
- microfilm plotter — a type of incremental plotter that has a film rather than a paper output
- microsoft network — The Microsoft Network
- microsoft project — (product) A Microsoft Windows program offering various project management tools.
- minister of state — (in the British Parliament) a minister, usually below cabinet rank, appointed to assist a senior minister with heavy responsibilities
- moment of inertia — the sum of the products of the mass and the square of the perpendicular distance to the axis of rotation of each particle in a body rotating about an axis.