13-letter words containing b, e, i, r
- turbine blade — any of a number of bladelike vanes assembled around the periphery of a turbine rotor to guide the steam or gas flow
- tuva republic — a constituent republic of S Russia: mountainous. Capital: Kizyl. Pop: 305 500 (2002). Area: 170 500 sq km (65 800 sq miles)
- ultra-liberal — extremely liberal, especially in politics.
- ultrareliable — extremely reliable
- ultrawideband — a transmission technique using a very wide spectrum of frequencies that enables high-speed transfer of data
- umbelliferous — bearing an umbel or umbels.
- umbrella bird — any of several large trogons of the genus Cephalopterus, of Central and South America, as C. ornatus, having an umbrellalike crest above the head.
- umbrella pine — a Japanese evergreen tree, Sciadopitys verticillata, having linear leaves growing in umbrellalike whorls, cultivated as an ornamental.
- unabbreviated — shortened; made briefer: The rain led to an abbreviated picnic.
- unappreciable — sufficient to be readily perceived or estimated; considerable: There is an appreciable difference between socialism and communism.
- unbelligerent — not belligerent or hostile
- unbowdlerized — to expurgate (a written work) by removing or modifying passages considered vulgar or objectionable.
- unciform bone — a small bone of the wrist
- unconvertible — capable of being converted.
- undeliverable — capable of delivery.
- underclubbing — the action of hitting with a club resulting in insufficient distance
- undescribable — to tell or depict in written or spoken words; give an account of: He described the accident very carefully.
- undiscernable — capable of being discerned; distinguishable.
- undiscernible — capable of being discerned; distinguishable.
- undistributed — (in distinctive feature analysis) characterized by relatively extensive contact or constriction between the articulating organs, as the (sh) in show in contrast to the (s) in so.
- undisturbedly — in an undisturbed manner
- unimpressible — not capable of being or willing to be impressed
- unneighboured — having no neighbour or neighbours
- unneighbourly — unfriendly and unhelpful
- unobliterated — to blot out or render undecipherable (writing, marks, etc.); efface.
- unobstructive — to block or close up with an obstacle; make difficult to pass: Debris obstructed the road.
- unobtrusively — not obtrusive; inconspicuous, unassertive, or reticent.
- unperceivable — imperceptible
- unperceivably — imperceptibly
- unperceptible — capable of being perceived; recognizable; appreciable: a perceptible change in his behavior.
- unpermissible — that can be permitted; allowable: a permissible amount of sentimentality under the circumstances; Such behavior is not permissible!
- unpolarizable — not capable of being polarized
- unpracticable — impracticable.
- unpredictable — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- unpredictably — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- unproblematic — not problematic, not causing difficulties or confusion; uncomplicated
- unreclaimable — not able to be reclaimed, reformed, or rescued from vice
- unreclaimably — in an unreclaimable manner
- unrectifiable — able to be rectified.
- unreliability — not reliable; not to be relied or depended on.
- unremembering — having no recollection or memory
- unreprievable — not able to be reprieved, eased, or postponed
- unresponsible — answerable or accountable, as for something within one's power, control, or management (often followed by to or for): He is responsible to the president for his decisions.
- unretrievable — to recover or regain: to retrieve the stray ball.
- unserviceable — not suitable to be used
- untarnishable — to dull the luster of (a metallic surface), especially by oxidation; discolor.
- untremblingly — not tremblingly; in an untrembling manner; without trembling
- unvitrifiable — not able to be vitrified
- urban studies — the various disciplines associated with the study of urban areas, including urban planning, urban economics and urban architecture
- vapor barrier — a layer of material, as plastic film or foil, used to protect installed insulation by retarding the transmission of moisture from the interior environment.