13-letter words containing r, u, m, b, l, i
- premandibular — situated in front of the mandible
- primum mobile — (in Ptolemaic astronomy) the outermost of the 10 concentric spheres of the universe, making a complete revolution every 24 hours and causing all the others to do likewise.
- purple mombin — a tree, Spondias purpurea, of tropical America, having clusters of purple or greenish flowers and yellow or dark red fruit that is edible either raw or cooked.
- rambling club — a club for people who enjoy taking walks in the country
- republicanism — republican government.
- resublimation — Psychology. the diversion of the energy of a sexual or other biological impulse from its immediate goal to one of a more acceptable social, moral, or aesthetic nature or use.
- rhumb sailing — sea navigation along rhumb lines.
- rum rebellion — the deposition of Governor William Bligh in 1808 by officers of the New South Wales Corps, caused by his interference in their trading activities, esp in the trafficking of rum
- rumble strips — one of a series of rough or slightly raised strips of pavement on a highway, intended to slow down the speed of vehicles, as before a toll booth.
- serial number — a number, usually one of a series, assigned for identification: the serial number of an automobile engine.
- serum albumin — Biochemistry. the principal protein of blood plasma, important in osmotic regulation of the blood and transport of metabolites.
- sinumbra lamp — an unshaded sperm-oil lamp consisting of a translucent glass globe supported on a pedestal: a form of astral lamp.
- strombuliform — in the shape of a coil
- sublime porte — official name of Porte.
- submillimeter — less than a millimeter in size: a submillimeter wave.
- submillimetre — a microscopic division of a millimetre
- subprime loan — A subprime loan is a loan with a higher interest rate, to borrowers who are a high credit risk.
- terbium metal — any of a subgroup of rare-earth metals, of which the cerium and yttrium metals comprise the other two subgroups.
- tramping club — an organization of people who walk for recreation, esp in the bush
- troublemaking — a person who causes difficulties, distress, worry, etc., for others, especially one who does so habitually as a matter of malice.
- umbelliferous — bearing an umbel or umbels.
- umbraculiform — umbrella-shaped
- 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.
- unimpressible — not capable of being or willing to be impressed
- unpermissible — that can be permitted; allowable: a permissible amount of sentimentality under the circumstances; Such behavior is not permissible!
- 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
- untremblingly — not tremblingly; in an untrembling manner; without trembling