15-letter words containing a, f, e, c, t, i
- surface density — quantity, as of electric charge, per unit surface area.
- surface tension — the elasticlike force existing in the surface of a body, especially a liquid, tending to minimize the area of the surface, caused by asymmetries in the intermolecular forces between surface molecules.
- syngeneic graft — a tissue or organ transplanted from one member of a species to another, genetically identical member of the species, as a kidney transplanted from one identical twin to the other.
- tax certificate — a document issued to the purchaser of property sold for unpaid taxes attesting to the holder's right to eventual receipt of the title deed.
- teaching fellow — a holder of a teaching fellowship.
- tenant in chief — a feudal vassal who holds land directly from the king.
- tenant-in-chief — a feudal vassal who holds land directly from the king.
- tentaculiferous — having tentacles
- tetrafunctional — pertaining to molecules or groups that can bond at four sites.
- the classifieds — a section of classified advertising in a publication
- the magic flute — an opera (1791) by Wolfgang Amadeus Mozart.
- theatrical film — a film made for exhibition in theaters, as distinguished from one made for television.
- theft insurance — insurance against loss or damage of property resulting from theft.
- ticket of leave — (formerly) a permit allowing a convict to leave prison, under certain restrictions, and go to work before having served a full term, somewhat similar to a certificate of parole.
- track and field — athletics events
- track-and-field — of, relating to, or participating in the sports of running, pole-vaulting, broad-jumping, etc.: a track-and-field athlete.
- tractive effort — the force exerted by a locomotive or other powered vehicle on its driving wheels.
- traffic manager — a person who supervises the transportation of goods for an employer.
- traffic offence — a violation of traffic regulations, such as breaking the speed limit
- traffic pattern — Aeronautics. a system of courses about an airfield that aircraft are assigned to fly when taking off, landing, or preparing to land.
- tray classifier — A tray classifier is a tank for leaching from a dispersed solid, in which pulp at the bottom of the tank is raked (= moved to the exit) while solvent is forced toward the bottom of the tank.
- ultracentrifuge — a high-speed centrifuge for subjecting sols or solutions to forces many times that of gravity and producing concentration differences depending on the weight of the micelle or molecule.
- ultramicrofiche — ultrafiche.
- unfair practice — unfair competition.
- viral infection — disease caused by a virus
- warrant officer — (in the U.S. Armed Forces) an officer of one of four grades ranking above enlisted personnel and below commissioned officers.
- witch of agnesi — a plane curve symmetrical about the y- axis and asymptotic to the x- axis, given by the equation x 2 y =4 a 2 (2 a − y).
- yeast infection — candida: genital inflammation