13-letter words containing a, t, r, i, f, l
- ultrararefied — extremely rarefied
- underinflated — lacking sufficient air pressure
- unfalteringly — to hesitate or waver in action, purpose, intent, etc.; give way: Her courage did not falter at the prospect of hardship.
- unfamiliarity — not familiar; not acquainted with or conversant about: to be unfamiliar with a subject.
- unrectifiable — able to be rectified.
- unvitrifiable — not able to be vitrified
- vacuum filter — A vacuum filter is a filter in which the liquid passes through more easily because of a vacuum on the liquid output side.
- verifiability — to prove the truth of, as by evidence or testimony; confirm; substantiate: Events verified his prediction.
- vertical file — a collection of pamphlets, pictures, clippings, or other materials stored upright, as in a filing cabinet or cabinets.
- water bailiff — an official responsible for enforcing laws on river management and fishing
- water milfoil — any of various aquatic plants, chiefly of the genus Myriophyllum, the submerged leaves of which are very finely divided.
- waterflooding — (in oil, gas, or petroleum production) the practice of injecting water to maintain pressure in a reservoir and to drive the oil, etc towards the production wells