15-letter words containing a, c, e, t, i
- entrance ticket — a ticket allowing the bearer to go into a place, such as a museum, monument, etc
- epicyclic train — a cluster of gears consisting of a central gearwheel with external teeth (the sun), a coaxial gearwheel of greater diameter with internal teeth (the annulus), and one or more planetary gears engaging with both of them to provide a large gear ratio in a compact space
- epistemological — Of or pertaining to epistemology or theory of knowledge, as a field of study.
- escape velocity — great enough speed to escape gravity
- eta abstraction — eta conversion
- etesian climate — a climate having sunny, hot, dry summers and rainy winters.
- eudiometrically — By means of or in terms of eudiometry.
- euphemistically — In a euphemistic manner.
- eustachian tube — part of the ear
- eviction clause — a clause by which a contract or other agreement may be terminated, especially between theatrical producers and theater owners in whose agreements it is often stipulated that when weekly receipts fall below a certain minimum usually for two consecutive weeks, the production must vacate the theater.
- exceptionalness — The quality of being exceptional.
- excess capacity — unused production capacity
- exchangeability — The condition of being exchangeable.
- excommunicating — Present participle of excommunicate.
- excommunication — The act of excommunicating or ejecting; especially an ecclesiastical censure whereby the person against whom it is pronounced is, for the time, cast out of the communication of the church; exclusion from fellowship in things spiritual.
- excommunicatory — Relating to excommunication.
- excursion train — a train that is laid on for a special occasion such as a sports or cultural event
- executive board — administrative committee
- exemplification — The act of exemplifying; a showing or illustrating by example.
- extensification — The process of making something (more) extensive.
- extension cable — an extra length of cable with a plug and a connector that can be added to an electric lead
- extracurricular — (of an activity at a school or college) Pursued in addition to the normal course of study.
- extradictionary — (obsolete) Consisting not of words but of realities.
- extrajudicially — Outside of the legal system.
- extralinguistic — Outside the realm of linguistics.
- extrinsicalness — Quality of being extrinsical.
- fabric softener — a substance added to fabrics during laundering to make them puffier and softer.
- factory chimney — a tall chimney of a factory
- fahnestock clip — a type of terminal using a spring that clamps readily onto a connecting wire.
- family practice — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- fantasticalness — The state or condition of being fantastical.
- farm gate price — the price for the sale of farm produce direct from the producer
- fatal exception — (programming, operating system) A program execution error which is trapped by the operating system and which results in abrupt termination of the program. It may be possible for the program to catch some such errors, e.g. a floating point underflow; others, such as an invalid memory access (an attempt to write to read-only memory or an attempt to read memory outside of the program's address space), may always cause control to pass to the operating system without allowing the program an opportunity to handle the error. The details depend on the language's run-time system and the operating system. See also: fatal error.
- featherstitched — Simple past tense and past participle of featherstitch.
- feature article — a feature article in a newspaper or magazine deals in depth with a topic or person
- ferroelasticity — (physics) A phenomenon, analogous to ferromagnetism and ferroelectricity, in which spontaneous strain arises within a material.
- fetishistically — in a fetishistic manner
- fibrocartilages — Plural form of fibrocartilage.
- fighter command — a former unit of the Royal Air Force dedicated to the use of fighter aircraft, esp against enemy bombers and their escorts during WWII
- fighting chance — a possibility of success following a struggle.
- fire resistance — the amount of resistance of a material or construction to fire.
- first secretary — The First Secretary of the Welsh Assembly is the leader of the ruling party.
- first-day cover — a cover marked so as to indicate that it was mailed on the first day of issue of the stamp it bears and from one of the cities at which the stamp was issued on that day.
- fission reactor — a nuclear reactor in which a fission reaction takes place
- fitness fanatic — someone who is obsessed with exercise and keeping himself or herself fit
- fitness tracker — a wearable electronic device or a software application that monitors one's physical fitness and daily physical activity.
- flame-arc light — an arc light that uses flame carbons to colour the arc
- fleet insurance — Fleet insurance is a type of insurance contract that applies to a number of vehicles.
- floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
- floating screed — Building Trades. screed (def 3).