14-letter words containing s, t, e, m, u, r
- undemonstrable — not able to be made evident
- understatement — the act or an instance of understating, or representing in a weak or restrained way that is not borne out by the facts: The journalist wrote that the earthquake had caused some damage. This turned out to be a massive understatement of the devastation.
- universal time — (time, standard) (UT) The mean solar time along the prime meridian (0 longitude) that runs through the Greenwich Observatory outside of London, UK, where the current system originated. UT is tied to the rotation of the Earth in respect to the fictitious "mean Sun". There are three separate definitions, UT0, UT1, and UT2, depending on which corrections have been applied to the Earth's motion. Coordinated Universal Time is kept within 0.9 seconds of UT1, by addition of leap seconds to International Atomic Time.
- unmaterialised — not materialised
- unpresumptuous — not presumptuous; modest
- unsectarianism — the state or quality of being unsectarian
- unsurmountable — to mount upon; get on the top of; mount upon and cross over: to surmount a hill.
- untransmutable — intransmutable
- verisimilitude — the appearance or semblance of truth; likelihood; probability: The play lacked verisimilitude.
- vitreous humor — the transparent gelatinous substance filling the eyeball behind the crystalline lens.
- voucher system — Accounting. a procedure for controlling disbursements by means of vouchers.
- water measurer — a slender heteropterous bug, Hydrometra stagnorum, that has a greatly elongated head and is found on still or sluggish water where it preys on water fleas, mosquito larvae, etc
- yttrium metals — a series of closely related metals including yttrium, holmium, erbium, thulium, ytterbium, lutetium, and sometimes, terbium, gadolinium, and dysprosium